[UPDATE] (deps): Bump coverallsapp/github-action in /.github/workflows

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.3.6 to 2.3.7.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@648a8eb...5cbfd81)

---
updated-dependencies:
- dependency-name: coverallsapp/github-action
  dependency-version: 2.3.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/Tests.yml

@@ -734,7 +734,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Signal Coveralls Finished
-      uses: coverallsapp/github-action@648a8eb78e6d50909eff900e4ec85cab4524a45b # v2.3.6
+      uses: coverallsapp/github-action@5cbfd81b66ca5d10c19b062c04de0199c215fb6e # v2.3.7
       with:
         build-number: ${{ needs.check_mats.outputs.tests_id }}
         parallel-finished: true