chore(deps): update devdependency vitest to v4

Author: renovate[bot]

package.json

@@ -46,6 +46,6 @@
     "nuxt": "^4.2.0",
     "playwright-core": "^1.56.1",
     "typescript": "^5.9.3",
-    "vitest": "^3.2.4"
+    "vitest": "^4.0.7"
   }
 }