Bump coverallsapp/github-action from 2.2.0 to 2.2.1 (#167)

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.2.0 to 2.2.1.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@v2.2.0...v2.2.1)

---
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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/nightly.yml

@@ -30,7 +30,7 @@ jobs:
         run: yarn workspace @ampleforthorg/spot-contracts run coverage
 
       - name: spot-contracts report coverage
-        uses: coverallsapp/github-action@v2.2.0
+        uses: coverallsapp/github-action@v2.2.1
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           path-to-lcov: "./spot-contracts/coverage/lcov.info"