Projectile protection no longer reduces the damage taken from llama spit

Description:
Unlike the release 1.20.4, projectile protection no longer reduces the damage taken from llama spit, which seems to be caused by the change to llama spit damage type.

Steps to Reproduce:

1. Change game difficulty to hard
2. Spawn a llama
3. Wear the leather cap without projectile protection
4. Attack the llama to make it spit at player
5. Wear the leather cap with projectile protection IV
6. Attack the llama to make it spit at player again
7. Compare the two damages

Observed Results:
Can find that projectile protection doens't reduce the damage taken from llama spit.

Expected Results:
The damage should be reduced.