Fix wheel uploading on new release tags (#355)

Author: eleftherioszisis

.github/workflows/publish-sdist-wheels.yml

@@ -112,7 +112,7 @@ jobs:
 
   upload_artifacts:
     name: Upload wheels to PyPI
-    if: github.event_name == 'release' && github.event.action == 'published'
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
 
     runs-on: ubuntu-latest
     needs: [build_wheels, build_sdist]