docs: update version

Author: shntnu

.github/workflows/docs.yml

@@ -42,7 +42,7 @@ jobs:
         uses: actions/configure-pages@v3
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v4
+        uses: actions/upload-pages-artifact@v3
         with:
           path: 'site'