upgrades to latest released antora
diff --git a/doc-sites/package-lock.json b/doc-sites/package-lock.json
index 45a007c..e606346 100644
--- a/doc-sites/package-lock.json
+++ b/doc-sites/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@antora/asciidoc-loader": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/asciidoc-loader/-/asciidoc-loader-2.3.3.tgz",
-      "integrity": "sha512-4dPwCnpKUrME8PZLImOD3BBcyxpaA9tAtySPKACDJPkXc24GcfjI59QbSc+shG1fKptOGaDk68O2ZMu/Gpmlhw==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/asciidoc-loader/-/asciidoc-loader-2.3.4.tgz",
+      "integrity": "sha512-IQ0d/hnOCGZXzTYUwKAw2BlyRMI4Kg/zu7XejQ6ERIncjuUUv/+PhlzVxoJNT0r9uasJFHDlZ7l3X53Hn+MUuQ==",
       "dev": true,
       "requires": {
         "asciidoctor.js": "1.5.9",
@@ -15,19 +15,27 @@
       }
     },
     "@antora/cli": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/cli/-/cli-2.3.3.tgz",
-      "integrity": "sha512-mWxMMWKzTmhmTgAeAVestZf4CRcC4lBD5l521J2fsdGpGx9dQGiwqQZqNcwROJDE+Lg0YfXYYqP1UUKhZwYz6Q==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/cli/-/cli-2.3.4.tgz",
+      "integrity": "sha512-KItaWFEf/X4LLY2XCidjD00oUp4Ay7y9Hu26+T8dPqV+qnMwOL+MGHhYXsJz+4JaeNJu1Ofwc4onmShpwHQruA==",
       "dev": true,
       "requires": {
-        "@antora/playbook-builder": "2.3.3",
-        "commander": "~5.1"
+        "@antora/playbook-builder": "2.3.4",
+        "commander": "~6.1"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-6.1.0.tgz",
+          "integrity": "sha512-wl7PNrYWd2y5mp1OK/LhTlv8Ff4kQJQRXXAvF+uU/TPNiVJUxZLRYGj/B0y/lPGAVcSbJqH2Za/cvHmrPMC8mA==",
+          "dev": true
+        }
       }
     },
     "@antora/content-aggregator": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/content-aggregator/-/content-aggregator-2.3.3.tgz",
-      "integrity": "sha512-ehr0VmPltRCmKuSIT5idSnI7S2sn/q9UHBdB85GsvxOqgfM08lnkZrxbdiVqmg+06rLi8qUUCLB3dI4RZ8+xvw==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/content-aggregator/-/content-aggregator-2.3.4.tgz",
+      "integrity": "sha512-ZwlGm/t90PUnGVo+pir71O+wC+gyXnVuhoAed+9bBLjsiGI7EGUzwUEXSZqHRSihPx5XLFj6pZinoCGX+uabcw==",
       "dev": true,
       "requires": {
         "@antora/expand-path-helper": "~1.0",
@@ -41,28 +49,28 @@
         "mime-types": "~2.1",
         "multi-progress": "~2.0",
         "picomatch": "~2.2",
-        "through2": "~3.0",
+        "through2": "~4.0",
         "vinyl": "~2.2",
         "vinyl-fs": "~3.0"
       }
     },
     "@antora/content-classifier": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/content-classifier/-/content-classifier-2.3.3.tgz",
-      "integrity": "sha512-VLnOIuL0uRasQsXJ8m2vjpAFdEkpWfs1L32OuVupQ1SwjpUAvJz46W3pVg9qxxEWRRjtidCvcc3KY0LI6X0Jvw==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/content-classifier/-/content-classifier-2.3.4.tgz",
+      "integrity": "sha512-DR4I6dLSZEFOS3T0F/hYwLf3AGY2Rb3e9j8V8ygEFzdP8OySAAZWyTjjJPF4pJZqjWtqD7s7S1f5/cCI83977Q==",
       "dev": true,
       "requires": {
-        "@antora/asciidoc-loader": "2.3.3",
+        "@antora/asciidoc-loader": "2.3.4",
         "vinyl": "~2.2"
       }
     },
     "@antora/document-converter": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/document-converter/-/document-converter-2.3.3.tgz",
-      "integrity": "sha512-mGdDHRxYPts3QiT/thYVoQz1QgFXN6ZFU2jgjX0VmCzcIwKGK0TOgzbp+1A3V0o92VAISEmrjC812orbtHeKqA==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/document-converter/-/document-converter-2.3.4.tgz",
+      "integrity": "sha512-Fo2SKdX3BlNrvfQEBOi2II+YmYzdEqKQ5+lO2pzxJuNBfqN0kJJYYk30jFPR27h6QuU43U/XZgufyDt+FjfdZg==",
       "dev": true,
       "requires": {
-        "@antora/asciidoc-loader": "2.3.3"
+        "@antora/asciidoc-loader": "2.3.4"
       }
     },
     "@antora/expand-path-helper": {
@@ -72,18 +80,18 @@
       "dev": true
     },
     "@antora/navigation-builder": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/navigation-builder/-/navigation-builder-2.3.3.tgz",
-      "integrity": "sha512-dx8PPFPvRBF+KInDXZU8k5dJ3sIVh1VvfsZhPUI27d5HMi+FRa0le8PK0OK5Hms4ixY/c1lXGcCAPFt0aH4Lxw==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/navigation-builder/-/navigation-builder-2.3.4.tgz",
+      "integrity": "sha512-55I7p9tNTernQ/YR1+mp6RRXMV5EcU8q20Tdodt3mazdm3ObTe9E9XVAvUDFmDzRA27D0eb06jVRwLoth1gHYA==",
       "dev": true,
       "requires": {
-        "@antora/asciidoc-loader": "2.3.3"
+        "@antora/asciidoc-loader": "2.3.4"
       }
     },
     "@antora/page-composer": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/page-composer/-/page-composer-2.3.3.tgz",
-      "integrity": "sha512-yp1bHj5twD8TbBn8MHwe7488EB+xVmbyFJBvV2GLMyiWN7DnlCaW/AaCiw05vsU4mDAd+MQ8P+KeNhDRZnlU2w==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/page-composer/-/page-composer-2.3.4.tgz",
+      "integrity": "sha512-xY0O9X87DzcoP6k/5Jx55ysy0iQIhgav3q1JbOQK/FoYQYHbiQgmVWOjJdqh5nZw57ih3yE20JROPuYqOYuUZA==",
       "dev": true,
       "requires": {
         "handlebars": "~4.7",
@@ -91,9 +99,9 @@
       }
     },
     "@antora/playbook-builder": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/playbook-builder/-/playbook-builder-2.3.3.tgz",
-      "integrity": "sha512-X9S38WgX2diZISNF4QKdF4ZfdND4ySsMlI26Iz4iybxf7xNlUJE1lAk9RM57Ooq543lEUNSnYHpECb1tog2BNw==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/playbook-builder/-/playbook-builder-2.3.4.tgz",
+      "integrity": "sha512-iPjBndcoZhWqpN608WOkXKUUD94b3JX38igebshiT5/NRINJbeEclpdEX/gPv8D1Z1JcrSVGURZQO1uML76dkg==",
       "dev": true,
       "requires": {
         "@iarna/toml": "~2.2",
@@ -104,48 +112,48 @@
       }
     },
     "@antora/redirect-producer": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/redirect-producer/-/redirect-producer-2.3.3.tgz",
-      "integrity": "sha512-69QtpB9wPVsg7/ykJq8zYUrHywSOtfgJEizxK+GmWharjZyrMReNB7IX1pg7Dk8qI6CGB0OOkhIYC41nGmuhmg==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/redirect-producer/-/redirect-producer-2.3.4.tgz",
+      "integrity": "sha512-148amiLc+1Pod6kluAOBke8OATFWFUW3LZdTPFVfqX1lJolCp5ciOnGciy52sIIysSyVkQUjotEUhqGO9Af1EQ==",
       "dev": true,
       "requires": {
-        "@antora/asciidoc-loader": "2.3.3",
+        "@antora/asciidoc-loader": "2.3.4",
         "vinyl": "~2.2"
       }
     },
     "@antora/site-generator-default": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/site-generator-default/-/site-generator-default-2.3.3.tgz",
-      "integrity": "sha512-kY2j2gsBo1U4Jn+WqK09chsFgXbbUvafgqGo3SzFDdjpsG/NvIylLK3g+bbZ0X9N7FysXytlAhyAYlOJDvXjGw==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/site-generator-default/-/site-generator-default-2.3.4.tgz",
+      "integrity": "sha512-uRiFJ/nG5bxjDmFOur27ae7A1J7r+OFVocEwx+vVLRvVYfNHxYP0fI2uUrmJTci8xJ92NLH9VLHpfsHypsoq9Q==",
       "dev": true,
       "requires": {
-        "@antora/asciidoc-loader": "2.3.3",
-        "@antora/content-aggregator": "2.3.3",
-        "@antora/content-classifier": "2.3.3",
-        "@antora/document-converter": "2.3.3",
-        "@antora/navigation-builder": "2.3.3",
-        "@antora/page-composer": "2.3.3",
-        "@antora/playbook-builder": "2.3.3",
-        "@antora/redirect-producer": "2.3.3",
-        "@antora/site-mapper": "2.3.3",
-        "@antora/site-publisher": "2.3.3",
-        "@antora/ui-loader": "2.3.3"
+        "@antora/asciidoc-loader": "2.3.4",
+        "@antora/content-aggregator": "2.3.4",
+        "@antora/content-classifier": "2.3.4",
+        "@antora/document-converter": "2.3.4",
+        "@antora/navigation-builder": "2.3.4",
+        "@antora/page-composer": "2.3.4",
+        "@antora/playbook-builder": "2.3.4",
+        "@antora/redirect-producer": "2.3.4",
+        "@antora/site-mapper": "2.3.4",
+        "@antora/site-publisher": "2.3.4",
+        "@antora/ui-loader": "2.3.4"
       }
     },
     "@antora/site-mapper": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/site-mapper/-/site-mapper-2.3.3.tgz",
-      "integrity": "sha512-ERMGWl6s9B42crML7Tt4alPdJ/diSE6zQUSIMbbK7biI1EzjwxUCgKQ5lRJllUuGAdcXuYWQLGrpj/CWJzUXXA==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/site-mapper/-/site-mapper-2.3.4.tgz",
+      "integrity": "sha512-GVghn6ausIWZlUfbEEdDD4YB7M1mWJAUMokyha9sE5w0gyYoWwukKWQiwCwk/JhvnwXunMLhEUm6y2nrHEmlLw==",
       "dev": true,
       "requires": {
-        "@antora/content-classifier": "2.3.3",
+        "@antora/content-classifier": "2.3.4",
         "vinyl": "~2.2"
       }
     },
     "@antora/site-publisher": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/site-publisher/-/site-publisher-2.3.3.tgz",
-      "integrity": "sha512-LAavxXd3wmH0hWqNkKMgQuj/fjE08BTO6zYR51KLBO798h0f7H0OgyBI+p8c7l/QANpAfjaWyBpbR1zOxnLCMQ==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/site-publisher/-/site-publisher-2.3.4.tgz",
+      "integrity": "sha512-7xI/5OdjKq5tkdGzE0ABkl/QpIcgtnof+rnIWZweQKeQtA3LWutvEHtdIeXLQt0oNZmE/kf45FwC2XCg9/ptDg==",
       "dev": true,
       "requires": {
         "@antora/expand-path-helper": "~1.0",
@@ -156,9 +164,9 @@
       }
     },
     "@antora/ui-loader": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/@antora/ui-loader/-/ui-loader-2.3.3.tgz",
-      "integrity": "sha512-bQVb6PE34iDmZj6wZZzYm3rLjguxoSqHZj4QReVQsOle/LdIwl48hV9Iz/Pivy9NtVCui9LL/lmSQzMt0G0jkw==",
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/@antora/ui-loader/-/ui-loader-2.3.4.tgz",
+      "integrity": "sha512-eorTmZW7zc6ZHgGLt3Vrq7mzPuobPeJnyfli50/m/DIQ91slkqjPKUYGcq4paPEz6IWoa7LT2ZwtwA5KzMyTPg==",
       "dev": true,
       "requires": {
         "@antora/expand-path-helper": "~1.0",
@@ -170,7 +178,7 @@
         "gulp-vinyl-zip": "~2.2",
         "js-yaml": "~3.14",
         "minimatch-all": "~1.1",
-        "through2": "~3.0",
+        "through2": "~4.0",
         "vinyl": "~2.2",
         "vinyl-fs": "~3.0"
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@@ -477,9 +485,9 @@
       "dev": true
     },
     "async-lock": {
-      "version": "1.2.4",
-      "resolved": "https://registry.npmjs.org/async-lock/-/async-lock-1.2.4.tgz",
-      "integrity": "sha512-UBQJC2pbeyGutIfYmErGc9RaJYnpZ1FHaxuKwb0ahvGiiCkPUf3p67Io+YLPmmv3RHY+mF6JEtNW8FlHsraAaA==",
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/async-lock/-/async-lock-1.2.8.tgz",
+      "integrity": "sha512-G+26B2jc0Gw0EG/WN2M6IczuGepBsfR1+DtqLnyFSH4p2C668qkOCtEkGNVEaaNAVlYwEMazy1+/jnLxltBkIQ==",
       "dev": true
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@@ -522,9 +530,9 @@
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     "bl": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/bl/-/bl-4.0.2.tgz",
-      "integrity": "sha512-j4OH8f6Qg2bGuWfRiltT2HYGx0e1QcBTrK9KAHNMwMZdQnDZFk0ZSYIpADjYCB3U12nicC5tVJwSIhwOWjb4RQ==",
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/bl/-/bl-4.0.4.tgz",
+      "integrity": "sha512-7tdr4EpSd7jJ6tuQ21vu2ke8w7pNEstzj1O8wwq6sNNzO3UDi5MA8Gny/gquCj7r2C6fHudg8tKRGyjRgmvNxQ==",
       "dev": true,
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         "buffer": "^5.5.0",
@@ -628,19 +636,19 @@
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     "buffer": {
-      "version": "5.6.0",
-      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.6.0.tgz",
-      "integrity": "sha512-/gDYp/UtU0eA1ys8bOs9J6a+E/KWIY+DZ+Q2WESNUA0jFRsJOc0SNUO6xJ5SGA1xueg3NL65W6s+NY5l9cunuw==",
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz",
+      "integrity": "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==",
       "dev": true,
       "requires": {
-        "base64-js": "^1.0.2",
-        "ieee754": "^1.1.4"
+        "base64-js": "^1.3.1",
+        "ieee754": "^1.1.13"
       },
       "dependencies": {
         "base64-js": {
-          "version": "1.3.1",
-          "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.1.tgz",
-          "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==",
+          "version": "1.5.1",
+          "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
+          "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==",
           "dev": true
         }
       }
@@ -755,6 +763,16 @@
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       }
     },
+    "call-bind": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
+      "integrity": "sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==",
+      "dev": true,
+      "requires": {
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.2"
+      }
+    },
     "camelcase": {
       "version": "5.3.1",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
@@ -1005,9 +1023,9 @@
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-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/convict/-/convict-6.0.0.tgz",
-      "integrity": "sha512-osfPkv5yjVoZqrTWBXuh/ABGpFoaJplbt0WXr0CodR4CSWt8UnzY4PSUyRz/+5BX5YUtWcToG29Kr0B6xhdIMg==",
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/convict/-/convict-6.0.1.tgz",
+      "integrity": "sha512-M4YNNq5NV4/VS8JhvBSHAokwvQRL4evEuU0VFe1GNPiqnj9TAkLXpf39ImCCVZlsp3CFp04bc/kRSWPGsJGJWg==",
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       "requires": {
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@@ -1477,6 +1495,17 @@
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       }
     },
+    "get-intrinsic": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.1.1.tgz",
+      "integrity": "sha512-kWZrnVM42QCiEA2Ig1bG8zjoIMOgxWwYCEeNdwY6Tv/cOSeGpcoX4pXHfKUxNKVoArnrEr2e9srnAxxGIraS9Q==",
+      "dev": true,
+      "requires": {
+        "function-bind": "^1.1.1",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.1"
+      }
+    },
     "get-stdin": {
       "version": "8.0.0",
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@@ -1731,9 +1760,9 @@
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-      "version": "4.7.6",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.6.tgz",
-      "integrity": "sha512-1f2BACcBfiwAfStCKZNrUCgqNZkGsAT7UM3kkYtXuLo0KnaVfjKOyf7PRzB6++aK9STyT1Pd2ZCPe3EGOXleXA==",
+      "version": "4.7.7",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.7.tgz",
+      "integrity": "sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==",
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@@ -1759,6 +1788,15 @@
         "har-schema": "^2.0.0"
       }
     },
+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "dev": true,
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
+    },
     "has-flag": {
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@@ -1766,9 +1804,9 @@
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-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.1.tgz",
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+      "resolved": "https://registry.npmjs.org/object.assign/-/object.assign-4.1.2.tgz",
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-        "function-bind": "^1.1.1",
-        "has-symbols": "^1.0.0",
-        "object-keys": "^1.0.11"
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+        "define-properties": "^1.1.3",
+        "has-symbols": "^1.0.1",
+        "object-keys": "^1.1.1"
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-      "integrity": "sha1-c0TLuLbib7J9ZrL8hvn21Zl1IcY=",
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+      "resolved": "https://registry.npmjs.org/through2/-/through2-4.0.2.tgz",
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@@ -3982,9 +4019,9 @@
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diff --git a/doc-sites/package.json b/doc-sites/package.json
index 720a7d0..e1b28dc 100644
--- a/doc-sites/package.json
+++ b/doc-sites/package.json
@@ -24,8 +24,8 @@
   "author": "Apache James Contributors <server-dev@james.apache.org>",
   "license": "ISC",
   "devDependencies": {
-    "@antora/cli": "^2.3.3",
-    "@antora/site-generator-default": "^2.3.3",
+    "@antora/cli": "^2.3.4",
+    "@antora/site-generator-default": "^2.3.4",
     "npm-check-updates": "^7.0.2"
   }
 }