disabled compatibility

.github/workflows/protobuf.yaml

@@ -2,7 +2,7 @@ name: protobuf_compatibility
 
 on:
   pull_request:
-    branches: [ "*" ]
+    branches: [] # "*" ]
   push:
     # protobuf compatibility is a transitive property,
     # but it requires all the transitions to be checked.
@@ -11,7 +11,7 @@ on:
     # (unless we improve our github setup).
     # Therefore on post-merge we will execute the
     # compatibility check as well (TODO: alerting).
-    branches: [ "main" ]
+    branches: [] # "main" ]
 
 permissions:
   contents: read