src: pass along MaybeLocal<> state from `URL::ToObject()`

PR-URL: https://github.com/nodejs/node/pull/25141


Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>