readline: introduce promise-based API

PR-URL: https://github.com/nodejs/node/pull/37947
Fixes: https://github.com/nodejs/node/issues/37287


Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Robert Nagy <ronagy@icloud.com>