Issue template version bump for 1.21
Update to Minecraft 1.21
3.5.0
=====
[1.20.6] Fix crash when biomes have been disabled via modloader methods. (#169)
* Fix crash when biomes have been disabled via modloader methods.
* Remove unused import.
Fix crash when biomes have been disabled via modloader methods. (#168)
Fixed an issue with timing of injecting into possibleBiomes
Fix mixins on Forge