Added upload to TestPyPI

Author: lucasimi

.github/workflows/publish.yml

@@ -31,5 +31,10 @@ jobs:
           python -m build
           python -m twine check dist/*
 
+      - name: Publish to TestPyPI 
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://test.pypi.org/legacy/
+
       - name: Publish to PyPI 
         uses: pypa/gh-action-pypi-publish@release/v1