ignore protobuf files in linting, 3rd try

.github/workflows/lint.yaml

@@ -25,9 +25,10 @@ jobs:
         uses: actions/checkout@v4
       - name: autopep8
         id: autopep8
+        exclude: "*_pb2.py"
         uses: peter-evans/autopep8@v2
         with:
-          args: --exit-code -r -d -a -a --exclude '*_pb2.py' src/
+          args: --exit-code -r -d -a -a src/
       - name: Fail if autopep8 requires changes
         if: steps.autopep8.outputs.exit-code == 2
         run: exit 1