chore(deps): update dependency @vitejs/plugin-vue to v3.1.2

Author: renovate[bot]

packages/example/package.json

@@ -12,7 +12,7 @@
     "vue-router": "^4.0.15"
   },
   "devDependencies": {
-    "@vitejs/plugin-vue": "3.0.0",
+    "@vitejs/plugin-vue": "3.1.2",
     "typescript": "^4.5.4",
     "vite": "3.0.4",
     "vue-tsc": "0.38.9",