ci: enforce formatting of .bzl files (#23544)

These are now enforced in google3 so we want to match, so that PRs don't get held up when we sync

PR Close #23544

.circleci/config.yml

@@ -48,7 +48,7 @@ jobs:
 
       # Check BUILD.bazel formatting before we have a node_modules directory
       # Then we don't need any exclude pattern to avoid checking those files
-      - run: 'buildifier -mode=check $(find . -type f \( -name BUILD.bazel -or -name BUILD \)) ||
+      - run: 'buildifier -mode=check $(find . -type f \( -name "*.bzl" -or -name BUILD.bazel -or -name BUILD \)) ||
               (echo "BUILD files not formatted. Please run ''yarn buildifier''" ; exit 1)'
       # Run the skylark linter to check our Bazel rules
       # deprecated-api is disabled because we use actions.new_file(genfiles_dir)