CustomAnvilGUI

• Update minecraft version to 1.21.11 and dependencies;
• Bug Fix of repair with materials (Diamond, Iron, Gold, ecc);
• Bug Fix various;
• Code Optimizations;

If you find some bugs please don't hesitate to report them via modrinth or discord, I will reply you as soon as possible and if you have any ideas I will be happy to listen to you.

See you at the next update ;)