ci: bump codecov/codecov-action from 4 to 5

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 4 to 5.
- [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...v5)

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

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

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -74,7 +74,7 @@ jobs:
       - name: Test
         run: go test -coverprofile=coverage.txt ./...
       - name: Upload Coverage
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         continue-on-error: true
         with:
           token: ${{secrets.CODECOV_TOKEN}}