fix(tests): import in fetch state fn

Signed-off-by: Victor Adossi <vadossi@cosmonic.com>

Author: vados-cosmonic

test/builtins/fetch.js

@@ -1,11 +1,12 @@
+import { URL } from "node:url";
 import { createServer } from "node:net";
 
 import { strictEqual, ok } from 'node:assert';
-import { getRandomPort } from "../util"; 
 
 const FETCH_URL = 'http://localhost';
 
 export const state = async () => {
+  const { getRandomPort } = await import(new URL("../util", import.meta.url));
   const port = await getRandomPort();
   return { port };
 };