stream: use readableObjectMode public api for js stream

PR-URL: https://github.com/nodejs/node/pull/27655
Refs: https://github.com/nodejs/node/issues/445


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>