Update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -41,7 +41,7 @@
     "@types/node": "22.15.3",
     "@typescript-eslint/eslint-plugin": "8.36.0",
     "@typescript-eslint/parser": "8.36.0",
-    "@vitest/ui": "1.6.1",
+    "@vitest/ui": "4.0.7",
     "autoprefixer": "10.4.21",
     "eslint": "9.26.0",
     "eslint-plugin-qwik": "1.13.0",
@@ -56,7 +56,7 @@
     "vercel": "41.7.0",
     "vite": "6.3.4",
     "vite-tsconfig-paths": "5.1.4",
-    "vitest": "1.6.1"
+    "vitest": "4.0.7"
   },
   "dependencies": {
     "@modular-forms/qwik": "0.29.1",