build(deps): bump fastify/github-action-merge-dependabot

Bumps [fastify/github-action-merge-dependabot](https://github.com/fastify/github-action-merge-dependabot) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/fastify/github-action-merge-dependabot/releases)
- [Commits](fastify/github-action-merge-dependabot@v2.0.0...v2.1.0)

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

.github/workflows/ci.yml

@@ -54,6 +54,6 @@ jobs:
     needs: test
     runs-on: ubuntu-latest
     steps:
-      - uses: fastify/github-action-merge-dependabot@v2.0.0
+      - uses: fastify/github-action-merge-dependabot@v2.1.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}