chore(deps): update dependency vitest to v4

Author: renovate[bot]

package.json

@@ -84,7 +84,7 @@
     "unplugin-oxc": "^0.5.1",
     "unplugin-vue": "^7.0.1",
     "vite": "^7.1.3",
-    "vitest": "^3.2.4",
+    "vitest": "^4.0.6",
     "vue": "^3.5.19",
     "vue-tsc": "^3.0.6"
   },