Update dependency vitest to v4

Author: renovate[bot]

package.json

@@ -72,7 +72,7 @@
         "typescript": "^5.8.3",
         "typescript-eslint": "^8.35.0",
         "vite": "^7.0.0",
-        "vitest": "^3.2.4"
+        "vitest": "^4.0.0"
     },
     "lint-staged": {
         "*.{ts,tsx}": [