Use pypa/gh-action-pypi-publish@release/v1 instead of pinning to th…

…e specific version.

This is needed to release our new version using `Metadata-Version: 2.3` (used by hatchling). The support was added in v1.8.13. See https://github.com/pypa/gh-action-pypi-publish/releases.

PiperOrigin-RevId: 617920963

.github/workflows/pypi_upload.yml

@@ -28,7 +28,7 @@ jobs:
       run: python -m build
 
     - name: Publish to PyPI
-      uses: pypa/gh-action-pypi-publish@v1.8.3
+      uses: pypa/gh-action-pypi-publish@release/v1
       with:
         user: __token__
         password: ${{ secrets.PYPI_API_TOKEN }}