fix: use bot token when merging dependabot workflow PRs

Author: MekDrop

.github/workflows/dependabot.yml

@@ -33,7 +33,7 @@ jobs:
       - name: "Merge pull request"
         uses: "actions/github-script@v8"
         with:
-          github-token: "${{ secrets.GITHUB_TOKEN }}"
+          github-token: "${{ secrets.IMPRESSBOT_TOKEN }}"
           script: |
             const pullRequest = context.payload.workflow_run.pull_requests[0]
             const repository = context.repo