chore(ci): upgrade upload-pages-artifact to v4

Author: aarongustafson

.github/workflows/pages.yml

@@ -2,7 +2,7 @@ name: Deploy to GitHub Pages
 
 on:
   push:
-    branches: [main]
+    branches: [ main ]
     paths:
       - "demo/**"
       - "README.md"
@@ -39,7 +39,7 @@ jobs:
         uses: actions/configure-pages@v4
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: "."