Bump fastify/github-action-merge-dependabot from v1.2.1 to v2.0.0

Bumps [fastify/github-action-merge-dependabot](https://github.com/fastify/github-action-merge-dependabot) from v1.2.1 to v2.0.0.
- [Release notes](https://github.com/fastify/github-action-merge-dependabot/releases)
- [Commits](fastify/github-action-merge-dependabot@v1.2.1...a8beb6a)

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

.github/workflows/ci.yml

@@ -51,7 +51,7 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: fastify/github-action-merge-dependabot@v1.2.1
+      - uses: fastify/github-action-merge-dependabot@v2.0.0
         if: ${{ github.actor == 'dependabot[bot]' && github.event_name == 'pull_request' }}
         with:
           github-token: ${{secrets.github_token}}