Merge pull request #51945 from ruthra-kumar/reenable_auto_close

chore: reenable auto close

Author: ruthra-kumar

.mergify.yml

@@ -16,6 +16,7 @@ pull_request_rules:
               - base=version-12
               - base=version-14
               - base=version-15
+              - base=version-16
     actions:
       close:
       comment: