update_readme.yml

# -----------------------------------------------------------------------------
#   - invoked on push to any branch
# -----------------------------------------------------------------------------
    name: update README

    on: push
    
    jobs:
      update-readme:
        runs-on: ubuntu-latest
        steps:
          - name: Checkout code
            uses: actions/checkout@v2
          - name: Set up Python
            uses: actions/setup-python@v2
            with:
              python-version: 3.11
          - name: Update README
            run: |
              pip install packaging
              python update_readme.py
          - name: Commit and push changes
            run: |
              git config --local user.email "action@github.com"
              git config --local user.name "github-actions"
              git diff --quiet && git diff --staged --quiet || (
                git add README.rst
                git commit -am "update README with supported Python versions"
                git pull --rebase origin ${{ github.ref_name }}
                git push origin ${{ github.ref_name }}
              )
            env:
              GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}