Bump coverallsapp/github-action from 2.1.0 to 2.1.2

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.1.0 to 2.1.2.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@v2.1.0...v2.1.2)

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

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

.github/workflows/coveralls.yml

@@ -68,7 +68,7 @@ jobs:
     - name: generate coverage info
       run: lcov -d . -c -o ./lcov.info
     - name: Coveralls upload
-      uses: coverallsapp/github-action@v2.1.0
+      uses: coverallsapp/github-action@v2.1.2
       with:
         github-token: ${{ secrets.github_token }}
         git-branch: ${{ matrix.branches.branch }}