Update exact neo4j version to 2025.06.2

Author: renetapopova

antora.yml

@@ -7,7 +7,7 @@ nav:
 asciidoc:
   attributes:
     neo4j-version: '2025.06'
-    neo4j-version-exact: '2025.06.0'
+    neo4j-version-exact: '2025.06.2'
     neo4j-buildnumber: '2025.06'
     java-driver-version: '5.28.7'
     neo4j-documentation-branch: 'dev'