chore: added automerge GHA for dependabot PRs

.github/workflows/automerge-dependabot.yml

@@ -0,0 +1,25 @@
+name: Automerge Dependabot
+
+on:
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  automerge:
+    name: Merge Dependabot Pull Pequest
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - name: Merge
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          script: |
+            github.rest.pulls.merge({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.issue.number,
+              merge_method: 'squash'
+            })