Feature :
- Add new 1.21.11 items

Tech features :
- A big work has been made to use spigot-api as much as possible instead of NMS to reduce break at each new minecraft version.
- Use PersistentDataContainer instead of NBT for anti-duplication system
- Use Inventory.setTitle instead of NMS to update inventory name
- Use Material registry to get ItemStack instead of NMS
- Use NamespacedKey instead of MinecraftKey

Fixes :
- Fix parsing of minecraft version for >1.21.10 (only one digit were parsed for patch)
- Force update of inventory after each click, fix #153
- Fix issue with price-limits loading in 1.21.10 (removed duckconfig)