url: throw invalid this on detached accessors

Previously, using Reflect.get/set or calling a member
method like toString() detached from the instance would
result in an obscure internal error. This adds a proper
brand check and throws `ERR_INVALID_THIS` when appropriate.

Signed-off-by: James M Snell <jasnell@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/39752


Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Zijian Liu <lxxyxzj@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>