Bump codecov/codecov-action in /.github/workflows in the actions group

Bumps the actions group in /.github/workflows with 1 update: [codecov/codecov-action](https://github.com/codecov/codecov-action).


Updates `codecov/codecov-action` from 4 to 5
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4...v5)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/main.yml

@@ -71,6 +71,6 @@ jobs:
       run: tox -v -e ${{ matrix.toxenv }}
     - name: Upload coverage to codecov
       if: ${{ contains(matrix.toxenv,'-cov') }}
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
         file: ./coverage.xml