Update codecov/codecov-action action to v5

Author: renovate[bot]

.github/workflows/pythonapp.yml

@@ -30,6 +30,6 @@ jobs:
         pip install pytest-cov
         pytest --cov=./ --cov-report=xml
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
         token: ${{ secrets.CODECOV_TOKEN }}