doc: use any for worker_threads.Worker 'error' event argument err

[jonasgeiler]

A worker thread can throw anything via the throw keyword, which gets passed directly to 'error' event listeners. The event listener should not assume it is an Error object.

Here is a Node.js script proofing this:

import { isMainThread, Worker } from "node:worker_threads";

if (isMainThread) {
	// Main thread.

	const worker = new Worker(new URL(import.meta.url));

	worker.on("error", (err /* Documented as `Error`, but should be seen as `any`. */) => {
		console.log(typeof err); // Prints 'boolean'.
	});
} else {
	// Worker thread.

	throw false; // You can literally throw anything.
}

[aduh95]

Landed in 9fbf0cb