Typo on 'mob.cat.hit' sound file (is spelled mob.cat.hitt)

Steps to reproduce

• Go into your minecraft assets folder

• Go into the sounds folder, then the mob folder, then the cat folder

The 'mob.cat.hit' sound will be spelled 'mob.cat.hitt'

(I know, very small bug, but it was annoying when I was trying to use the /playsound command to play that sound)