Migrate dependabot-auto-merge to sue445/workflows

Author: sue445

.github/dependabot-auto-merge.yml

@@ -1,26 +1,16 @@
 name: dependabot-auto-merge
 
 on:
-  pull_request_target:
+  pull_request:
+    types:
+      - opened
+      - synchronize # PR branch is rebased
 
 jobs:
   auto-merge:
-    runs-on: ubuntu-latest
-
-    if: github.actor == 'dependabot[bot]'
-
-    steps:
-      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
-
-      - uses: ahmadnassri/action-dependabot-auto-merge@45fc124d949b19b6b8bf6645b6c9d55f4f9ac61a # v2.6.6
-        with:
-          github-token: ${{ secrets.GH_PAT_DEPENDABOT_AUTO_MERGE }}
-          config: .github/dependabot-auto-merge.yml
-
-      - name: Slack Notification (not success)
-        uses: act10ns/slack@cfcc30955fe9377f4f55e1079e5419ee1014269f # v2
-        if: "! success()"
-        continue-on-error: true
-        with:
-          status: ${{ job.status }}
-          webhook-url: ${{ secrets.SLACK_WEBHOOK }}
+    uses: sue445/workflows/.github/workflows/dependabot-auto-merge.yml@main
+    secrets:
+      # TODO: Set secrets to Dependabot secrets
+      app-id: ${{ secrets.RUBY_GO_GEM_BOT_APP_ID }}
+      private-key: ${{ secrets.RUBY_GO_GEM_BOT_PRIVATE_KEY }}
+      slack-webhook: ${{ secrets.SLACK_WEBHOOK }}