try this

Author: hazzik

.github/workflows/GenerateAsyncCode.yml

@@ -1,19 +1,18 @@
 name: Generate Async code
 
-on: [pull_request]
+on: [pull_request_target]
 
 jobs:
   generate-async:
     runs-on: ubuntu-latest
 
-    permissions:
-      pull-requests: write
-
     steps:
     - uses: actions/checkout@v3
-      with:
-        ref: ${{ github.event.pull_request.head.ref }}
-        repository: ${{ github.event.pull_request.head.repo.full_name }}
+      # with:
+      #   ref: ${{ github.event.pull_request.head.ref }}
+      #   repository: ${{ github.event.pull_request.head.repo.full_name }}
+      #   token: {{ }}
+
     - name: Setup .NET
       uses: actions/setup-dotnet@v2
       with: