Parrot plays sounds of zombie when imitating drowned

Drowned has own unique sounds, but parrot plays sounds of zombie instead of drowned when imitating drowned. This also break parity with Java Edition.

Steps to Reproduce:

1. Spawn a drowned and a parrot
2. Wait for a few minutes

Observed Results:
Parrot plays sounds of zombie.

Expected Results:
Parrot should play sounds of drowned.