The hitboxes of turtles are not adjusted when they become pregnant

The Bug:

The hitboxes of turtles are not adjusted when they become pregnant.

Steps to Reproduce:

1. Summon a regular turtle and a pregnant turtle next to one another by using the commands provided below.

   /summon minecraft:turtle ~4 ~1 ~ {HasEgg:1b,NoAI:1b}

   /summon minecraft:turtle ~2.7 ~1 ~ {NoAI:1b}

2. Enable entity hitboxes by pressing "F3 + B".
3. Look closely at the hitboxes of both of the turtles.
4. Take note as to whether or not the hitboxes of turtles are adjusted when they become pregnant.

Observed Behavior:

The hitboxes of turtles are not adjusted when they become pregnant.

Expected Behavior:

The hitboxes of pregnant turtles would be slightly larger than the hitboxes of regular turtles, as their models have been made slightly bigger.