Merge pull request #41 from per1234/bump-codecov-action

Bump codecov/codecov-action to v2

Author: per1234

.github/workflows/test-python.yml

@@ -78,7 +78,7 @@ jobs:
               coverage report
 
       - name: Upload coverage report to Codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
         with:
           file: ${{ env.COVERAGE_DATA_FILENAME }}
           fail_ci_if_error: true