fix PR builds

Author: Thunkar

.github/workflows/deploy.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - main
-  pull_request:
+  pull_request_target:
     branches:
       - main
       - next
@@ -32,6 +32,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Set up Node.js
         uses: actions/setup-node@v4