chore(deps): bump codecov/codecov-action from 1 to 2.0.1 (#539)

Author: dependabot[bot]

.github/workflows/python_build.yml

@@ -37,7 +37,7 @@ jobs:
       - name: Complexity baseline
         run: make complexity-baseline
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2.0.1
         with:
           file: ./coverage.xml
           # flags: unittests