Revert "Update sync.yml"

This reverts commit 96107d9.

Author: sunjuzhong

.github/workflows/sync.yml

@@ -44,6 +44,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: flexcompute/flex
+          token: ${{ secrets.GH_PAT }}
           path: flex
           ref: ${{ env.TARGET_BRANCH }}
 
@@ -63,9 +64,11 @@ jobs:
       - name: Commit change to target repo
         shell: bash
         working-directory: ${{ github.workspace }}/flex
+        env:
+          GH_TOKEN: ${{ secrets.GH_PAT }}
         run: |
           git config --global user.email "[email protected]"
           git config --global user.name "github_auto"
           git add frontend/flexcompute.com/
           git diff-index --quiet HEAD || git commit -m "sync(): sync from tidy3d-faq"
-          git push
+          git push