update untrusted trigger

Author: adamint

.github/workflows/ci.yml

@@ -73,4 +73,4 @@ jobs:
           github.event_name == 'repository_dispatch' &&
           github.event.client_payload.slash_command.sha != '' &&
           contains(github.event.client_payload.pull_request.head.sha, github.event.client_payload.slash_command.sha) && 
-          !(github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository)
+          github.event.pull_request.head.repo.full_name != github.repository