ci: bump coverallsapp/github-action from 2.3.7 to 2.3.8

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.3.7 to 2.3.8.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@v2.3.7...v2.3.8)

---
updated-dependencies:
- dependency-name: coverallsapp/github-action
  dependency-version: 2.3.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -54,6 +54,6 @@ jobs:
         run: npm run tests-only
       - name: Submit coverage
         if: matrix.node-version == '22.x'
-        uses: coverallsapp/github-action@v2.3.7
+        uses: coverallsapp/github-action@v2.3.8
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}