update exact version to 4.4.30 (#120)

Author: renetapopova

antora.yml

@@ -8,5 +8,5 @@ asciidoc:
   attributes:
     page-origin-private: false
     neo4j-version: '4.4'
-    neo4j-version-exact: '4.4.29'
+    neo4j-version-exact: '4.4.30'
     neo4j-buildnumber: '4.4'