[ffigen] Bump coverallsapp/github-action from 1.1.3 to 1.2.4 (#523)

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](https://github.com/coverallsapp/github-action/compare/9ba913c152ae4be1327bfb9085dc806cedb44057...50c33ad324a9902697adbf2f92c22cf5023eacf1)

---
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>

pkgs/ffigen/.github/workflows/test-package.yml

diff --git a/pkgs/ffigen/.github/workflows/test-package.yml b/pkgs/ffigen/.github/workflows/test-package.yml
index a9c0cf6..67c991c 100644
--- a/pkgs/ffigen/.github/workflows/test-package.yml
+++ b/pkgs/ffigen/.github/workflows/test-package.yml
@@ -71,7 +71,7 @@
       - name: Collect coverage
         run: ./tool/coverage.sh
       - name: Upload coverage
-        uses: coverallsapp/github-action@9ba913c152ae4be1327bfb9085dc806cedb44057
+        uses: coverallsapp/github-action@50c33ad324a9902697adbf2f92c22cf5023eacf1
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           path-to-lcov: lcov.info