test: add mustcall in test-net-bytes-read.js

* add mustcall() on createServerListener
* add mustcall() on listenPortListener
* add mustCall() on onConnectListener
* add mustCallAtLeast() on onDataListener

PR-URL: https://github.com/nodejs/node/pull/27471


Reviewed-By: Ouyang Yadong <oyydoibh@gmail.com>
Reviewed-By: Masashi Hirano <shisama07@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>