windows: stopping a http server keeps process alive forever

[paperdave]

What version of Bun is running?

No response

What platform is your computer?

No response

What steps can reproduce the bug?

import { serve } from "bun";
const server = serve({
  fetch() {
    return new Response("Hello world");
  },
  port: 0,
});
const res = await fetch(`http://${server.hostname}:${server.port}`);
if (res.status !== 200) throw "fail from server";
if ((await res.text()) !== "Hello world") throw "fail from server";
server.stop();
console.log("ok");

What is the expected behavior?

No response

What do you see instead?

No response

Additional information

No response

[ghiscoding]

I'm not sure if it's related or not but this reminds me of Lerna issue that was only observed on Windows and was caused by a child process missing option and just adding windowsHide: false to execa child_process (in this PR) fixed the issue.