fix: check if codecov is working

Author: Vinit Kumar

.github/workflows/pythonpackage.yml

@@ -47,3 +47,8 @@ jobs:
         coverage xml
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v4
+      with:
+        fail_ci_if_error: true # optional (default = false)
+        name: codecov-umbrella # optional
+        token: ${{ secrets.CODECOV_TOKEN }} # required
+        verbose: true # optional (default = false)