Simply Dual Wielding – SimplyDualWielding-7.1.2+1.21.1

### Patch 7.1.2
– Fixed offhand attacks being spammy when held.
– Fixed failure to join worlds (a mixin got removed from the mixin config unintentionally, my bad!)
– Fixed crash caused when updating an item with a durability reduction in the offhand.
– Improved internal efficiency in various ways
– Java version compatibility has been improved (affects versions below 1.20.5 and will affect versions above 1.21.11)