Bump coverallsapp/github-action from 1.1.3 to 1.2.4 (#136)

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 1.1.3 to 1.2.4.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@9ba913c...50c33ad)

---
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>

Author: dependabot[bot]

.github/workflows/test-package.yml

@@ -113,7 +113,7 @@ jobs:
     - name: Collect and report coverage
       run: dart pub global run coverage:test_with_coverage
     - name: Upload coverage
-      uses: coverallsapp/github-action@9ba913c152ae4be1327bfb9085dc806cedb44057
+      uses: coverallsapp/github-action@50c33ad324a9902697adbf2f92c22cf5023eacf1
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
         path-to-lcov: wasm/coverage/lcov.info