seperate workflow...so seperate pytest install is needed...

Author: espg

.github/workflows/coverage.yml

@@ -8,6 +8,8 @@ jobs:
     coverage:
         runs-on: ubuntu-latest
         steps:
+          - name: Install Pytest
+            run: pip install pytest pytest-cov
           - name: Run pytest
             run: python -m pytest --cov-report xml:coverage.xml
           - name: Get Cover