Bump fastify/github-action-merge-dependabot from v1 to v1.2.1 (#298)

Bumps [fastify/github-action-merge-dependabot](https://github.com/fastify/github-action-merge-dependabot) from v1 to v1.2.1.
- [Release notes](https://github.com/fastify/github-action-merge-dependabot/releases)
- [Commits](fastify/github-action-merge-dependabot@v1...afbe82b)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
     needs: test
     runs-on: ubuntu-latest
     steps:
-      - uses: fastify/github-action-merge-dependabot@v1
+      - uses: fastify/github-action-merge-dependabot@v1.2.1
         if: ${{ github.actor == 'dependabot[bot]' && github.event_name == 'pull_request' }}
         with:
           github-token: ${{secrets.github_token}}