chore(deps): update dependency typescript to v6

Author: renovate[bot]

package.json

@@ -87,7 +87,7 @@
     "prettier": "3.8.1",
     "rimraf": "6.1.3",
     "supertest": "7.2.2",
-    "typescript": "5.9.3",
+    "typescript": "6.0.2",
     "typescript-eslint": "8.57.2",
     "vitest": "4.1.2"
   }