Create a github release on tag

Author: will-moore

.github/workflows/publish_pypi.yml

@@ -20,3 +20,8 @@ jobs:
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
           password: ${{ secrets.PYPI_PASSWORD }}
+      - name: Create a GitHub release
+        if: startsWith(github.ref, 'refs/tags')
+        run: gh release create --generate-notes "${GITHUB_REF#refs/tags/}"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}