[Bug] Apotheosis Bosses can still attack in certain conditions

[glektarssza]

Under the following conditions, Apotheosis bosses can still attack the player:

• The player is in the same chunk as the boss when it generates.
• The boss is created using a "summon item" like a spawn egg.
• The boss is spawned by a player getting too close to a boss spawner.

This is because these three conditions call setTarget directly without checking canAttack.

The intended fix is to override setTarget as well to return immediately without setting the target if the disableTargetingPlayers gamerule is set.