chore(deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -85,8 +85,8 @@
     "@u3u/eslint-config": "^2.15.2",
     "@u3u/prettier-config": "^4.5.1",
     "@u3u/tailwind-config": "link:",
-    "@vitest/coverage-v8": "^1.6.0",
-    "@vitest/ui": "^1.6.0",
+    "@vitest/coverage-v8": "^4.0.5",
+    "@vitest/ui": "^4.0.5",
     "bumpp": "^9.10.1",
     "daisyui": "^4.12.23",
     "dedent": "^1.5.3",
@@ -99,7 +99,7 @@
     "tailwindcss": "^3.4.17",
     "tsup": "^8.3.5",
     "typescript": "^5.7.3",
-    "vitest": "^1.6.0"
+    "vitest": "^4.0.5"
   },
   "peerDependencies": {
     "@iconify/json": ">=2.2.0",