Fix wrong condition used in `filter_models` (#29673)

update
Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

utils/tests_fetcher.py

@@ -1244,7 +1244,7 @@ if __name__ == "__main__":
                     args.output_file,
                     diff_with_last_commit=diff_with_last_commit,
                     json_output_file=args.json_output_file,
-                    filter_models=(not commit_flags["no_filter"] or is_main_branch),
+                    filter_models=(not (commit_flags["no_filter"] or is_main_branch)),
                 )
                 filter_tests(args.output_file, ["repo_utils"])
             except Exception as e: