build(deps): bump codecov/codecov-action from 5.4.0 to 5.4.2

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.4.0 to 5.4.2.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@0565863...ad3126e)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: 5.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -45,7 +45,7 @@ jobs:
         uv run pytest --cov=powerapi --cov-report=term --cov-report=xml tests/unit
 
     - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@0565863a31f2c772f9f0395002a31e3f06189574 # v5.4.0
+      uses: codecov/codecov-action@ad3126e916f78f00edff4ed0317cf185271ccc2d # v5.4.2
       with:
         token: ${{ secrets.CODECOV_TOKEN }}