Bump org.apache.sling.xss from 2.0.0 to 2.0.4 (#4)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Stefan Seifert <stefanseifert@users.noreply.github.com>
diff --git a/pom.xml b/pom.xml
index 356d875..8b8c6b4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -75,8 +75,7 @@
         <dependency>
             <groupId>org.apache.sling</groupId>
             <artifactId>org.apache.sling.xss</artifactId>
-            <version>2.0.0</version>
-            <!-- TODO - check if lower version is possible -->
+            <version>2.0.4</version>
             <scope>provided</scope>
         </dependency>