[ffigen] Bump coverallsapp/github-action from 2.0.0 to 2.1.2 (#564)

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.0.0 to 2.1.2.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](https://github.com/coverallsapp/github-action/compare/67662d24394fd74bffcf7b462d1b432814159afd...f350da2c033043742f89e8c0b7b5145a1616da6d)

---
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 af8b1f6..b739392 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@67662d24394fd74bffcf7b462d1b432814159afd
+        uses: coverallsapp/github-action@f350da2c033043742f89e8c0b7b5145a1616da6d
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           path-to-lcov: lcov.info