Bump coverallsapp/github-action from 2.0.0 to 2.1.2 (#76)

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.0.0 to 2.1.2.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@v2.0.0...v2.1.2)

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

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

.github/workflows/ci.yml

@@ -22,6 +22,6 @@ jobs:
       - run: npm run test
       - run: npm run mutate
       - run: npm run coverage
-      - uses: coverallsapp/github-action@v2.0.0
+      - uses: coverallsapp/github-action@v2.1.2
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}