Update codecov/codecov-action action to v5.5.1

Author: renovate[bot]

.github/workflows/codecov.yaml

@@ -18,6 +18,6 @@ jobs:
     - name: Run tests and collect coverage
       run: python3 -m pytest --cov=src --cov-report=xml
     - name: Upload coverage reports to Codecov with GitHub Action
-      uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24 # v5.4.3
+      uses: codecov/codecov-action@5a1091511ad55cbe89839c7260b706298ca349f7 # v5.5.1
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}