Fixed hook rotation math using degrees instead of radians.

[squeeglii]

Original behaviour on 1.20.x:

• The hook would spin sporadically as it flew through the air
• The hook's angle wouldn't be aligned with the block it hit (i.e, the loop could be facing the block, or it could be flat against the block)

I think this was caused by the 1.19.3 update where they changed the method for rotation. This restores the old behaviour.