chore(deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -37,8 +37,8 @@
     "@types/node": "^24.0.0",
     "@typescript-eslint/eslint-plugin": "^8.0.0",
     "@typescript-eslint/parser": "^8.0.0",
-    "@vitest/browser": "3.2.4",
-    "@vitest/coverage-v8": "^3.0.0",
+    "@vitest/browser": "4.0.18",
+    "@vitest/coverage-v8": "^4.0.0",
     "eslint": "^8.57.0",
     "eslint-plugin-storybook": "^9.1.10",
     "eslint-plugin-svelte": "^2.43.0",
@@ -56,7 +56,7 @@
     "tslib": "^2.6.3",
     "typescript": "^5.5.3",
     "vite": "^7.0.0",
-    "vitest": "^3.0.0"
+    "vitest": "^4.0.0"
   },
   "packageManager": "yarn@4.10.3",
   "lint-staged": {