Checkout fix

Signed-off-by: Jing Chen <[email protected]>

Author: jgchn

.github/workflows/run-examples-prep.yml

@@ -12,11 +12,10 @@ jobs:
         python-version: ['3.11', '3.12', '3.13']
 
     steps:
-    - uses: actions/checkout@v4
-      with:
-        ref: ${{ github.head_ref }}
-        repository: ${{ github.repository }}
-        fetch-depth: 0
+    # - uses: actions/checkout@v4
+    #   with:
+    #     repository: ${{ github.event.pull_request.head.repo.full_name }}
+    #     ref: ${{ github.event.pull_request.head.ref }}
 
     # Detect modified PDL files, includes Add, Modified, but not Deleted
     - uses: actions/checkout@v4