Fix codecov

Author: Inbal Tako

.github/workflows/ci.yml

@@ -31,10 +31,10 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install pytest pytest-cov responses codecov requests-mock
+        pip install pytest pytest-cov responses codecov requests-mock coveragepy
     - name: Test with pytest
       run: |
-        pytest --cov=./
+        pytest --cov=./ --cover-xml
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v1
       with: