ci: add metion workflow

.github/workflows/metion.yml

@@ -0,0 +1,31 @@
+name: Auto Mention on Issue
+
+on:
+  issues:
+    types: [opened, reopened]
+  pull_request:
+    types: [opened,reopened]
+
+permissions:
+  issues: write
+  pull-requests: write
+
+jobs:
+  mention:
+    runs-on: ubuntu-latest
+    steps:
+    - name: issue mention user
+      if: github.event_name == 'issues'
+      uses: peter-evans/create-or-update-comment@v4
+      with:
+        issue-number: ${{ github.event.issue.number }}
+        body: |
+          @richerfu Please check this issue, thanks.
+
+    - name: pr mention user
+      if: github.event_name == 'pull_request'
+      uses: peter-evans/create-or-update-comment@v4
+      with:
+        issue-number: ${{ github.event.pull_request.number }}
+        body: |
+          @richerfu Please check this PR, thanks.