ci: Update release workflow

Author: matmoncon

.github/workflows/ci.yaml

@@ -135,3 +135,13 @@ jobs:
         uses: python-semantic-release/python-semantic-release@master
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Publish package distributions to PyPI
+        id: pypi-publish
+
+        if: steps.release.outputs.released == 'true'
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          verbose: true
+          user: ${{ secrets.PYPI_USERNAME }}
+          password: ${{ secrets.PYPI_PASSWORD }}