chore(deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -188,8 +188,8 @@
     "@types/babel__generator": "^7.27.0",
     "@types/node": "^24.9.1",
     "@types/picomatch": "^4.0.2",
-    "@vitest/coverage-v8": "^3.2.4",
-    "@vitest/ui": "^3.2.4",
+    "@vitest/coverage-v8": "^4.0.3",
+    "@vitest/ui": "^4.0.3",
     "@vue/language-core": "^3.1.1",
     "@vue/test-utils": "^2.4.6",
     "chalk": "^5.6.2",
@@ -217,7 +217,7 @@
     "vite-plugin-vue-devtools": "^8.0.3",
     "vitepress": "^1.6.4",
     "vitepress-plugin-llms": "^1.8.0",
-    "vitest": "^3.2.4",
+    "vitest": "^4.0.3",
     "vue": "^3.5.22",
     "vue-router": "^4.6.3",
     "vue-router-mock": "^2.0.0",