message: interop: fix implementation appending
diff: @@ -140,11 +140,8 @@ jobs:
  - name: Patch implementations.py
  working-directory: quic-interop-runner
  run: |
  - # Delete last line
  - sed -i '$d' implementations.py
  # Append our implementation
  - echo ' "s2n-quic": {"url": "awslabs/s2n-quic-qns:latest", "role": 1},' >> implementations.py
  - echo '}' >> implementations.py
  + echo -e '\nIMPLEMENTATIONS["s2n-quic"] = {"url": "awslabs/s2n-quic-qns:latest", "role": 1}' >> implementations.py
  cat implementations.py
  - name: Run docker pull
  