Bump fastify/github-action-merge-dependabot from 2.4.0 to 2.6.0 (#267)

Bumps [fastify/github-action-merge-dependabot](https://github.com/fastify/github-action-merge-dependabot) from 2.4.0 to 2.6.0.
- [Release notes](https://github.com/fastify/github-action-merge-dependabot/releases)
- [Commits](fastify/github-action-merge-dependabot@v2.4.0...v2.6.0)

---
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>

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

.github/workflows/ci.yml

@@ -72,6 +72,6 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: fastify/github-action-merge-dependabot@v2.4.0
+      - uses: fastify/github-action-merge-dependabot@v2.6.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}