Point to master on pypa action (#39)

Author: Daltz333

.github/workflows/workflow.yml

@@ -84,7 +84,7 @@ jobs:
           python setup.py sdist
           python setup.py bdist_wheel
       - name: Publish a Python distribution to PyPI
-        uses: pypa/gh-action-pypi-publish@main
+        uses: pypa/gh-action-pypi-publish@master
         with:
           user: __token__
           password: ${{ secrets.pypi_password }}