specify git user.name and user.email in deploy for tests

Author: timvink

.github/workflows/pythonpublish.yml

@@ -19,6 +19,8 @@ jobs:
         pip install setuptools wheel twine
     - name: Make sure unit tests succeed
       run: |
+        git config --global user.name "Github Action"
+        git config --global user.email "[email protected]"
         pip install -r tests/test_requirements.txt
         pip install -e .
         pytest