Bump fastify/github-action-merge-dependabot from 2.1.1 to 2.2.0

Bumps [fastify/github-action-merge-dependabot](https://github.com/fastify/github-action-merge-dependabot) from 2.1.1 to 2.2.0.
- [Release notes](https://github.com/fastify/github-action-merge-dependabot/releases)
- [Commits](fastify/github-action-merge-dependabot@v2.1.1...v2.2.0)

---
updated-dependencies:
- dependency-name: fastify/github-action-merge-dependabot
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -53,7 +53,7 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: fastify/github-action-merge-dependabot@v2.1.1
+      - uses: fastify/github-action-merge-dependabot@v2.2.0
         if: ${{ github.actor == 'dependabot[bot]' && github.event_name == 'pull_request' }}
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}