Update release.yaml

Author: larsbuntemeyer

.github/workflows/release.yaml

@@ -18,7 +18,7 @@ jobs:
 
       - name: Publish to PyPI
         if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-        uses: pypa/gh-action-pypi-publish@main
+        uses: pypa/gh-action-pypi-publish@master
         with:
           user: ${{ secrets.PYPI_USERNAME }}
           password: ${{ secrets.PYPI_PASSWORD }}