chore: upgrade example packages version (#169)

Author: jsun969

example/package.json

@@ -16,8 +16,8 @@
   "devDependencies": {
     "@types/react": "^17.0.4",
     "@types/react-dom": "^17.0.3",
-    "@vitejs/plugin-react-refresh": "^1.3.3",
+    "@vitejs/plugin-react": "^2.0.0",
     "typescript": "^4.2.4",
-    "vite": "^2.2.3"
+    "vite": "^3.0.5"
   }
 }

example/vite.config.ts

@@ -1,7 +1,7 @@
 import { defineConfig } from 'vite';
-import reactRefresh from '@vitejs/plugin-react-refresh';
+import react from '@vitejs/plugin-react';
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [reactRefresh()],
+  plugins: [react()],
 });