Address warning in GitHub Actions tests about deprecated action (#1563)

Author: tleonhardt

.github/workflows/tests.yml

@@ -40,10 +40,11 @@ jobs:
 
       - name: Upload test results to Codecov
         if: ${{ !cancelled() }}
-        uses: codecov/test-results-action@v1
+        uses: codecov/codecov-action@v5
         with:
           flags: python${{ matrix.python-version }}
           name: codecov-umbrella-test-results
+          report_type: test_results
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5