build(deps): bump codecov/codecov-action from 5.4.2 to 5.4.3 (#3920)

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.4.2 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@ad3126e...18283e0)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/coverage.yml

@@ -55,4 +55,4 @@ jobs:
         # Some tests are especially flakey in coverage tests. That's fine. We
         # only really care to measure how much of our codebase is covered.
         continue-on-error: true
-      - uses: codecov/codecov-action@ad3126e916f78f00edff4ed0317cf185271ccc2d
+      - uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24