build(deps): bump NexusPHP/no-merge-commits from 2.1.0 to 2.2.1

Bumps [NexusPHP/no-merge-commits](https://github.com/nexusphp/no-merge-commits) from 2.1.0 to 2.2.1.
- [Release notes](https://github.com/nexusphp/no-merge-commits/releases)
- [Changelog](https://github.com/NexusPHP/no-merge-commits/blob/2.x/CHANGELOG.md)
- [Commits](https://github.com/nexusphp/no-merge-commits/compare/v2.1.0...v2.2.1)

---
updated-dependencies:
- dependency-name: NexusPHP/no-merge-commits
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/unit-tests.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Run test
-        uses: NexusPHP/no-merge-commits@v2.1.0
+        uses: NexusPHP/no-merge-commits@v2.2.1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
   conventional: