ci(action): add auto-merge-dependabot.yml

.github/workflows/auto-merge-dependabot.yml

@@ -0,0 +1,32 @@
+## more doc see
+# https://docs.github.com/code-security/dependabot/working-with-dependabot/automating-dependabot-with-github-actions#approve-a-pull-request
+
+name: auto merge dependabot
+on: pull_request
+
+permissions:
+  contents: write
+  pull-requests: write
+  repository-projects: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v2
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+
+      - name: Enable auto-merge for Dependabot PRs
+        # Automatically merge the following dependency upgrades:
+        # https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#ignore
+        if: steps.metadata.outputs.update-type == 'version-update:semver-minor' || steps.metadata.outputs.update-type == 'version-update:semver-patch'
+        run: |
+          gh pr edit "$PR_URL" --add-label "dependencies"
+          gh pr merge --auto --merge '${{ github.event.pull_request.html_url }}'
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}