Baby panda idle sound definition schema error

The bug

The mob.panda_baby.idle sound definition has a schema error: the pitch field is in the sound definition root, where it has no effect, instead of in each sound entry.

How to reproduce

1. Open the sound_definitions.json file and navigate to mob.panda_baby.idle
2. Notice the pitch next to category. That's not where it goes. Look at any other sound that uses pitch to see where it's supposed to go.

Expected result
Content log error from an invalid field existing in the vanilla data

Actual result
Invalid field is ignored. Note that baby pandas do still sound higher pitch than normal ones due to the hardcoded pitch-increase.