Bump codecov/codecov-action from 3 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3...v4)

---
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>

.github/workflows/test.yml

@@ -136,7 +136,7 @@ jobs:
         PYTHON: ${{ steps.py312.outputs.python-path }}
       run: cargo llvm-cov --workspace --all-targets --features=nightly,generate-large-test-files --ignore-filename-regex=cli/src/ --lcov --output-path lcov.info -- --include-ignored
     - name: Upload code coverage results
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         files: lcov.info
   test-sanitizers: