Add 7.7.3 back compat test indexes
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/index/TestBackwardsCompatibility.java b/lucene/backward-codecs/src/test/org/apache/lucene/index/TestBackwardsCompatibility.java
index e9a59b6..52cba32 100644
--- a/lucene/backward-codecs/src/test/org/apache/lucene/index/TestBackwardsCompatibility.java
+++ b/lucene/backward-codecs/src/test/org/apache/lucene/index/TestBackwardsCompatibility.java
@@ -348,7 +348,9 @@
     "7.7.1-cfs",
     "7.7.1-nocfs",
     "7.7.2-cfs",
-    "7.7.2-nocfs"
+    "7.7.2-nocfs",
+    "7.7.3-cfs",
+    "7.7.3-nocfs"
   };
 
   public static String[] getOldNames() {
@@ -383,7 +385,8 @@
     "sorted.7.6.0",
     "sorted.7.7.0",
     "sorted.7.7.1",
-    "sorted.7.7.2"
+    "sorted.7.7.2",
+    "sorted.7.7.3"
   };
 
   public static String[] getOldSortedNames() {
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/index/index.7.7.3-cfs.zip b/lucene/backward-codecs/src/test/org/apache/lucene/index/index.7.7.3-cfs.zip
new file mode 100644
index 0000000..03f5d64
--- /dev/null
+++ b/lucene/backward-codecs/src/test/org/apache/lucene/index/index.7.7.3-cfs.zip
Binary files differ
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/index/index.7.7.3-nocfs.zip b/lucene/backward-codecs/src/test/org/apache/lucene/index/index.7.7.3-nocfs.zip
new file mode 100644
index 0000000..94aaa74
--- /dev/null
+++ b/lucene/backward-codecs/src/test/org/apache/lucene/index/index.7.7.3-nocfs.zip
Binary files differ
diff --git a/lucene/backward-codecs/src/test/org/apache/lucene/index/sorted.7.7.3.zip b/lucene/backward-codecs/src/test/org/apache/lucene/index/sorted.7.7.3.zip
new file mode 100644
index 0000000..3468e8b
--- /dev/null
+++ b/lucene/backward-codecs/src/test/org/apache/lucene/index/sorted.7.7.3.zip
Binary files differ