Update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -23,7 +23,7 @@
     "@storybook/react": "8.2.9",
     "@storybook/test": "8.2.9",
     "@types/node": "20.19.23",
-    "@vitest/coverage-v8": "1.6.1",
+    "@vitest/coverage-v8": "4.0.4",
     "http-server": "14.1.1",
     "npm-run-all2": "6.2.6",
     "puppeteer": "22.15.0",
@@ -37,7 +37,7 @@
     "turbo": "1.13.4",
     "typescript": "5.9.3",
     "vite": "5.4.21",
-    "vitest": "1.6.1"
+    "vitest": "4.0.4"
   },
   "dependencies": {
     "next": "14.2.33",