Update pythonpackage.yml

Author: gaugup

.github/workflows/pythonpackage.yml

@@ -54,6 +54,18 @@ jobs:
         path: htmlcov
       # Use always() to always run this step to publish test results when there are test failures
       if: ${{ always() }}
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v2
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        directory: .
+        env_vars: OS,PYTHON
+        fail_ci_if_error: true
+        files: ./coverage.xml
+        flags: unittests
+        name: codecov-umbrella
+        path_to_write_report: ./coverage/codecov_report.txt
+        verbose: true
     - name: Check package consistency with twine
       run: |
         python setup.py check sdist bdist_wheel