test: reproduce node.js bug

[anonrig]

Passing set_host("::") produces invalid URL. Therefore, it is causing Node.js to fail on the next setter.

PS: Safari doesn't have this bug.

{
	const url = new URL('http://foo')
	url.host = '::' // does *not* crash
	url.port = 3000 // crashes with the described error below
}

Ref: nodejs/node#49650