test: add test of stream Transform

Add a test case of Transform constructor without new.

PR-URL: https://github.com/nodejs/node/pull/17303


Reviewed-By: Ron Korving <ron@ronkorving.nl>
Reviewed-By: Yosuke Furukawa <yosuke.furukawa@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>