net: emit close on unconnected socket

Socket should always emit 'close'. Regardless
whether it has been connected or not.

PR-URL: https://github.com/nodejs/node/pull/29803


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>