Happy ghast moves faster when not being ridden

Steps to Reproduce:

1. Spawn a happy ghast

2. Watch its speed as it moves around

3. Equip it with a harness

4. Ride the happy ghast

Observed Results:
The happy ghast is significantly faster without a rider, making it harder to interact with.

Expected Results:
The happy ghast moves at the same speed, which is slightly slower than a regular ghast.

Notes: Happy ghasts in Java Edition move slower, matching their riding speed.