Use modern build system

Author: kyleaoman

.github/workflows/python-publish.yml

@@ -29,5 +29,5 @@ jobs:
         TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
         TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
       run: |
-        python setup.py sdist bdist_wheel
+        python -m build
         twine upload dist/*