Bump coverallsapp/github-action from 1.2.4 to 2.1.0

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 1.2.4 to 2.1.0.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](https://github.com/coverallsapp/github-action/compare/v1.2.4...v2.1.0)

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

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

.github/workflows/tests.yml

@@ -60,7 +60,7 @@ jobs:
     - name: Run tests
       run: bundle exec rails test:all
     - name: Report completion to Coveralls
-      uses: coverallsapp/github-action@v1.2.4
+      uses: coverallsapp/github-action@v2.1.0
       with:
         github-token: ${{ secrets.github_token }}
         flag-name: ubuntu-${{ matrix.ubuntu }}-ruby-${{ matrix.ruby }}
@@ -71,7 +71,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Report completion to Coveralls
-      uses: coverallsapp/github-action@v1.2.4
+      uses: coverallsapp/github-action@v2.1.0
       with:
         github-token: ${{ secrets.github_token }}
         parallel-finished: true