UpgradeableSpawners - Levels 4.15.9

+ Updated: To latest Lands API

- Fixed: Startup error at disabling entity change item depending on config

+ Changed: spawner spawn event priority to better work with 3rd party plugins

+ Changed: Remove spider jockey etc.
- Fixed: Hologram not appearing after server reload in some cases

+ Changed: Only convert spawner on interaction if silktouch is disabled
- Fixed [#2371]: Drops for stacked entities

- Fixed: Error at /uspawner list

- Fixed: [#2344] Stacked entity stuck at amount 2

- Fixed: [#2337] Spawner continuing to spawn despite being paused manually

- Fixed: Experience not dropping on every kill with stacks

+ Improved: Filter drops for stacked mobs

+ Added: Folia Support

- Fixed: [#2357] [#2360] Error at entity spawn

+ Added: Support for Minecraft 1.20

- Fixed: [#2313] Spawn location invalid if spawner surrounded by blocks

+ Added: Option
  # Scan areas for passed limits each interval.
  interval_time: 30s

+ Changed: [#2321] default 3rd-party-stacking to false

- Fixed: [#2313] Entity spawn on top of block gets stuck

+ Added: [Suggestion] Modify max stack size
    # Max stack size
    # 0 means unlimited
    max-size: 500

- Fixed: [#2308] Max entities per period not resetting on server restart
- Fixed: [#2308] Resuming manually paused spawner does not spawn entities

+ Added: [#2283] Some debugging related to world load