assert,util: fix commutativity edge case

Verify that both objects property keys are enumerable.

Fixes: https://github.com/nodejs/node/issues/37710

PR-URL: https://github.com/nodejs/node/pull/37711


Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>