Zombified Piglin's ID uses the wrong naming

Steps to Reproduce:

1. write at the chat: "summon minecraft:zombie_pigman".

2. summon it to see that it summons a zombified piglin.

 

Observed Results:
Zombified Piglin's ID uses: "zombie_pigman".

Expected Results:
Zombified Piglin's ID should use: "zombified_piglin".