chore: bump fastify/github-action-merge-dependabot from 2.7.1 to 3.0.2

Bumps [fastify/github-action-merge-dependabot](https://github.com/fastify/github-action-merge-dependabot) from 2.7.1 to 3.0.2.
- [Release notes](https://github.com/fastify/github-action-merge-dependabot/releases)
- [Commits](fastify/github-action-merge-dependabot@v2.7.1...v3.0.2)

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

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

Author: dependabot[bot]

.github/workflows/dependabot-merge.yml

@@ -31,7 +31,7 @@ jobs:
     needs: check
     steps:
       - uses: haya14busa/action-workflow_run-status@v1
-      - uses: fastify/github-action-merge-dependabot@v2.7.1
+      - uses: fastify/github-action-merge-dependabot@v3.0.2
         with:
           target: minor
           merge-method: merge