Bump codecov/codecov-action from 5.5.2 to 5.5.3 (#60)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.5.2 to 5.5.3.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@671740a...1af5884)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: 5.5.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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/stage-2-test.yaml

@@ -39,7 +39,7 @@ jobs:
         run: uv run pytest
 
       - name: Upload coverage reports
-        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # v5.5.2
+        uses: codecov/codecov-action@1af58845a975a7985b0beb0cbe6fbbb71a41dbad # v5.5.3
         if: always()
         with:
           files: ./coverage.xml