The frost walker enchantment doesn't function on horse armor

The Bug:

The frost walker enchantment doesn't function on horse armor.

It's important to note that thorns, curse of vanishing, and feather falling enchantments continue to operate as expected.

Steps to Reproduce:

1. Summon a large area of water along with a horse wearing diamond horse armor enchanted with frost walker 2 by using the commands provided below.

   /fill ~1 ~-1 ~1 ~15 ~-1 ~15 minecraft:water

   /summon minecraft:horse ~ ~ ~ {Tame:1b,equipment:{saddle:{components:{"minecraft:enchantments":{"minecraft:frost_walker":2}},count:1,id:"minecraft:saddle"}}}

2. Mount the horse, ride it by the side of the water, and observe if the frost walker enchantment works.

Observed Behavior:

The frost walker enchantment doesn't function on horse armor.

Expected Behavior:

The frost walker enchantment would function on horse armor.