build(deps): bump codecov/codecov-action from 4.6.0 to 5.4.3

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4.6.0 to 5.4.3.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v4.6.0...v5.4.3)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: 5.4.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -45,7 +45,7 @@ jobs:
       run: grcov . --binary-path ./target/debug/deps/ -s . -t lcov --branch --ignore-not-existing --ignore '../*' --ignore "/*" -o target/tests.lcov
 
     - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@v4.6.0
+      uses: codecov/codecov-action@v5.4.3
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         slug: altsem/gitu