⬆️ Bump codecov/codecov-action from 4.5.0 to 5.1.1 (#132)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.5.0 to 5.1.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4.5.0...v5.1.1)

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

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -43,7 +43,7 @@ jobs:
         run: coverage xml
       # TEMPORARY FIX: Disable codecov until we can get it working again
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v4.5.0
+        uses: codecov/codecov-action@v5.1.1
         if: false
         with:
           name: sphinx-proof-pytests