chore(deps): Update codecov/codecov-action action to v5.4.0

Author: renovate[bot]

.github/workflows/reusable-tox.yml

@@ -375,7 +375,7 @@ jobs:
       if: >-
         !cancelled()
         && steps.tox-run.outputs.cov-report-files != ''
-      uses: codecov/codecov-action@13ce06bfc6bbe3ecf90edbbf1bc32fe5978ca1d3  # v5.3.1
+      uses: codecov/codecov-action@0565863a31f2c772f9f0395002a31e3f06189574  # v5.4.0
       with:
         disable_search: true
         fail_ci_if_error: >-