Add Dependabot Auto-Merge workflow (Github Workflows)

.github/workflows/dependabot_auto-merge.yml

@@ -0,0 +1,23 @@
+name: Dependabot Auto-Merge
+on:
+  pull_request_target:
+    branches:
+      - v1
+      - v2
+      - v3
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  dependabot:
+    name: Dependabot Auto-Merge
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - name: Enable auto-merge for Dependabot PRs
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}