doc: mention constructor check in deepStrictEqual

Signed-off-by: skdas20 <skdas5405@gmail.com>
PR-URL: #62010
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: skdas20

doc/api/assert.md

@@ -887,6 +887,7 @@ are recursively evaluated also by the following rules.
 * [`[[Prototype]]`][prototype-spec] of objects are compared using
   the [`===` operator][].
 * Only [enumerable "own" properties][] are considered.
+* Object constructors are compared when available.
 * {Error} names, messages, causes, and errors are always compared,
   even if these are not enumerable properties.
   `errors` is also compared.