doc: fix typo in util.types.isNativeError()

This is a small fix for my recent PR that fixes a typo in the
realm example.

PR-URL: #47532
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>

doc/api/util.md

@@ -2539,7 +2539,7 @@ for these errors:
 ```js
 const vm = require('node:vm');
 const context = vm.createContext({});
-const myError = vm.runInContext('new Error', context);
+const myError = vm.runInContext('new Error()', context);
 console.log(util.types.isNativeError(myError)); // true
 console.log(myError instanceof Error); // false
 ```