Added close-pull-request.yml to close pr for read-only repositories. (#4781)

Author: limingxinleo

.github/workflows/close-pull-request.yml

@@ -0,0 +1,13 @@
+name: Close Pull Request
+
+on:
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: superbrothers/close-pull-request@v3
+        with:
+          comment: "Hi, this is a READ-ONLY repository, please submit your PR on the https://github.com/hyperf/hyperf repository.<br><br> This Pull Request will close automatically.<br><br> Thanks! "