⬆️ Update codecov/codecov-action action to v5.5.3

Author: renovate[bot]

.github/workflows/tests.yaml

@@ -76,7 +76,7 @@ jobs:
           uv run python -m coverage xml -i
       - name: 🚀 Upload coverage report
         if: env.HAS_CODECOV_TOKEN == 'true'
-        uses: codecov/codecov-action@v5.5.2
+        uses: codecov/codecov-action@v5.5.3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: ℹ️ Skip Codecov upload (missing token)