[ci]Update sync demo next workflow file

demo/.github/workflows/releases-demo.yml

@@ -31,23 +31,28 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up Node
-        uses: actions/setup-node@v4
+
+      - name: Set up Bun
+        uses: oven-sh/setup-bun@v2
         with:
-          node-version: 20.x
+          bun-version: 1.1.34
+
       - name: Install dependencies and build
         env:
           BASE_PATH: '/${{ github.event.repository.name }}'
         run: |
-          npm i
-          npm run build
+          bun i
+          bun run build
+
       - name: Setup Pages
         uses: actions/configure-pages@v4
+
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:
           # Upload dist folder
           path: 'build/'
+
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4