lib: use validator

Used the `validateArray()` validator for array validation
for consistency. (Refs: #39536)

PR-URL: https://github.com/nodejs/node/pull/39547


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>