Bump fastify/github-action-merge-dependabot from 3.7.0 to 3.8.0

Bumps [fastify/github-action-merge-dependabot](https://github.com/fastify/github-action-merge-dependabot) from 3.7.0 to 3.8.0.
- [Release notes](https://github.com/fastify/github-action-merge-dependabot/releases)
- [Commits](fastify/github-action-merge-dependabot@v3.7.0...v3.8.0)

---
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>

.github/workflows/test.yml

@@ -251,7 +251,7 @@ jobs:
       contents: write
     steps:
       - name: 🤖 Merge PR from dependabot
-        uses: fastify/github-action-merge-dependabot@v3.7.0
+        uses: fastify/github-action-merge-dependabot@v3.8.0
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
           target: minor