fix: use tauri bot token

.github/workflows/assign.yml

@@ -7,8 +7,12 @@ on:
 jobs:
   auto_assign:
     runs-on: ubuntu-latest
-
+    env:
+      GITHUB_TOKEN: ${{ secrets.ORG_TAURI_BOT_PAT }}
     steps:
+      - name: Set up GitHub CLI
+        run: |
+          echo "${{ secrets.GITHUB_TOKEN }}" | gh auth login --with-token
       - name: Auto-assign PR to author
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}