chore(deps): update dependency vitest to v4

Author: renovate[bot]

package.json

@@ -92,7 +92,7 @@
     "ts-essentials": "10.0.4",
     "tsup": "8.3.6",
     "typescript": "5.7.3",
-    "vitest": "3.0.6",
+    "vitest": "4.0.3",
     "wait-for-expect": "3.0.2"
   },
   "engines": {