Dependabot update: Bump coverallsapp/github-action

CLA: trivial

(deps): Bump coverallsapp/github-action

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.2.3 to 2.3.0.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@v2.2.3...v2.3.0)

---
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>

Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from #24350)

.github/workflows/coveralls.yml

@@ -82,7 +82,7 @@ jobs:
              --exclude "/usr/include/*"
               -o ./lcov.info
     - name: Coveralls upload
-      uses: coverallsapp/github-action@v2.2.3
+      uses: coverallsapp/github-action@v2.3.0
       with:
         github-token: ${{ secrets.github_token }}
         git-branch: ${{ matrix.branches.branch }}