chore: pin pypa/gh-action-pypi-publish to release/v1 branch

Use the stable release/v1 branch instead of @master for better
stability and to avoid unexpected breaking changes.

Author: yasserfarouk

.github/workflows/pypi.yml

@@ -26,7 +26,7 @@ jobs:
         run: "uv run twine check dist/*"
       - name: Publish distribution 📦 to PyPI
         if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           user: __token__
           password: ${{ secrets.pypiapitoken }}