Update socketio_e2e.yml to remove pull_request_target (#849)

Removed pull_request_target trigger for workflows.

Author: vicancy

.github/workflows/socketio_e2e.yml

@@ -7,10 +7,6 @@ on:
     branches: [ "main" ]
     paths:
      - 'sdk/**'
-  pull_request_target:
-    branches: [ "main" ]
-    paths:
-     - 'sdk/**'
 env:
   NODE_VERSION: '18.x'                # set this to the node version to use
 jobs:
@@ -50,4 +46,4 @@ jobs:
         SocketIoPort: 3000
       run: |
         pushd sdk/webpubsub-socketio-extension
-        yarn run test
+        yarn run test