Bump codecov/codecov-action from 5.0.3 to 5.0.6

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.0.3 to 5.0.6.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v5.0.3...v5.0.6)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/codecov.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Generate code coverage
         run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5.0.3
+        uses: codecov/codecov-action@v5.0.6
         with:
           token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
           files: lcov.info