[workflows\publish_to_pypi] Add Upload artifact signatures to GitHub Release

Author: moi15moi

.github/workflows/publish_to_pypi.yml

@@ -32,3 +32,7 @@ jobs:
     - name: Publish distribution to PyPI
       uses: pypa/gh-action-pypi-publish@release/v1
 
+    - name: Upload artifact signatures to GitHub Release
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
+      run: gh release upload '${{ github.ref_name }}' dist/** --repo '${{ github.repository }}'