Bump coverallsapp/github-action from 1.0.1 to 2.1.0 (#119)

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 1.0.1 to 2.1.0.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@v1.0.1...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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/go.yml

@@ -44,7 +44,7 @@ jobs:
           outfile: coverage.lcov
 
       - name: Upload coverages
-        uses: coverallsapp/github-action@v1.0.1
+        uses: coverallsapp/github-action@v2.1.0
         with:
           github-token: ${{ secrets.github_token }}
           path-to-lcov: coverage.lcov