chore(deps): update codecov/codecov-action action to v6

Author: renovate[bot]

.github/workflows/test.yml

@@ -58,7 +58,7 @@ jobs:
 
       - name: "Upload coverage to Codecov"
         if: ${{ runner.os == 'Linux' && matrix.python-version == '3.9' }}
-        uses: codecov/codecov-action@v5.5.4
+        uses: codecov/codecov-action@v6.0.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true