A smooth update!

The version of MSM compatible with 1.21.6 is here ready to be enjoyed! This was much easier than the last update - with very few changes on Mojang's end for animals.

Bug fixes

• I erroneously neglected to write code that handles when an animal is killed by a weapon with Looting. Now, for example, a skeleton-pig will correctly drop more bones when killed by a weapon with looting