• Fix biome filter on <1.21.3
• Added multipliers option for tasks that support types array.

my_task:
  task: KILL_MOB
  display: "Something"
  args:
    amount: 100
    types:
      - "minecraft:zombie"
      - "mythicmobs:SkeletalKnight"
    multipliers:
      "mythicmobs:SkeletalKnight": 10