chore(deps): update dependency vitest to v4

Author: renovate[bot]

package.json

@@ -53,7 +53,7 @@
     "ts-node": "10.9.2",
     "tsup": "8.5.0",
     "typescript": "5.9.3",
-    "vitest": "2.1.9"
+    "vitest": "4.0.7"
   },
   "standard-version": {
     "scripts": {