Code cov: Attempt to fix

.github/workflows/codecov.yml

@@ -19,6 +19,7 @@ jobs:
       run: |
         pip install pytest
         pip install pytest-cov
+        pip install js2py
         pytest --cov=./ --cov-report=xml
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v1