Native WebSockets in node 20

[PuruVJ]

What is the problem this feature will solve?

We are working on a library and wish to keep its minimum LTS at v20. It uses WebSockets, and is used in both browser and NodeJS. To use the native implementations as much as possible, it'd be great to have WebSockets backported to node 20 as well. I had a conversation with @mcollina and he suggested exposing WebSockets on node:http

What is the feature you are proposing to solve the problem?

Expose WebSocket on node:http

import { WebSocket } from 'node:http';

What alternatives have you considered?

Do nothing and use npm packages like ws/isomorphic-ws

[mcollina]

@KhafraDev wdyt?

I think this would be good to do.

We should:

1. add it to v22.
2. backport the change to v20.

cc @nodejs/http

[anfibiacreativa]

I'm gonna take this with @manekinekko