Striders being ridden by babies and zombified piglins can move their heads up and down

Updated by [Helper] lillybeacon
The strider being ridden can turn its head on Bedrock Edition, even though there is the baby strider/zombified piglin that is riding on it. On Java Edition, the strider being ridden doesn't turn its head.

Step to Reproduce
1. Spawn a few striders, try to get a strider jockey.
2. Observe.

Observed Results
The strider being ridden can turn its head even though the zombified piglins/baby strider is riding on it.

Expected Results
The strider shouldn't turn their head when being ridden.

Original Description
Striders being ridden can move their heads up and down, which causes them and their riders to look very weird. On java edition they don't move their heads up and down.