⬆️ Bump codecov/codecov-action from 5 to 6 in the actions group (#55)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/codecov.yml

@@ -35,7 +35,7 @@ jobs:
           uv run pytest -n auto --cov-append --cov-report xml
 
       - name: Upload coverage report
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           env_vars: OS,PYTHON_VERSION