chore(deps): update devdependency vitest to v4

Author: renovate[bot]

package.json

@@ -54,7 +54,7 @@
     "nuxt": "^4.2.1",
     "playwright": "^1.57.0",
     "typescript": "^5.9.3",
-    "vitest": "^3.2.4"
+    "vitest": "^4.0.15"
   },
   "resolutions": {
     "@nuxtjs/device": "workspace:*"