Bump codecov/codecov-action from 4.3.0 to 4.6.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.3.0 to 4.6.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4.3.0...v4.6.0)

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

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

.github/workflows/coverage.yaml

@@ -36,4 +36,4 @@ jobs:
         run: cargo llvm-cov --lcov > lcov.info
 
       - name: Upload coverage report to Codecov
-        uses: codecov/codecov-action@v4.3.0
+        uses: codecov/codecov-action@v4.6.0