Bump codecov/codecov-action from 5.3.1 to 5.4.0

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5.3.1 to 5.4.0.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@13ce06b...0565863)

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

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

Author: dependabot[bot]

.github/workflows/checks.yaml

@@ -99,7 +99,7 @@ jobs:
         env:
           RUST_BACKTRACE: 1
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@13ce06bfc6bbe3ecf90edbbf1bc32fe5978ca1d3
+        uses: codecov/codecov-action@0565863a31f2c772f9f0395002a31e3f06189574
         with:
           files: lcov.info
           token: ${{ secrets.CODECOV_TOKEN }}