chore(deps): update test packages to v4

Author: renovate[bot]

package.json

@@ -71,7 +71,7 @@
     "@nuxt/schema": "3.20.1",
     "@nuxt/test-utils": "3.20.1",
     "@types/node": "22.18.1",
-    "@vitest/coverage-v8": "3.2.4",
+    "@vitest/coverage-v8": "4.0.11",
     "bumpp": "10.2.3",
     "eslint": "9.35.0",
     "lint-staged": "16.1.6",
@@ -80,7 +80,7 @@
     "simple-git-hooks": "2.13.1",
     "typescript": "5.9.2",
     "unbuild": "3.6.1",
-    "vitest": "3.2.4",
+    "vitest": "4.0.11",
     "vue": "3.5.24"
   },
   "lint-staged": {