feat: update java21

src/main/resources/slsaddition.mixins.json

@@ -16,6 +16,7 @@
     "carpet.MixinSettingsManager",
     "entity.MixinArmorStandEntity",
     "entity.MixinEnderDragonFight",
+    "entity.MixinEndermanGoal",
     "entity.MixinFallingBlockEntity",
     "entity.MixinItemEntity",
     "entity.MixinPlayerEntity",
@@ -41,6 +42,7 @@
     "screen.MixinSlot",
     "server.MixinMinecraftServer",
     "server.MixinPlayerManager",
+    "world.MixinSleepManager",
     "world.MixinSpawnHelper",
     "world.MixinWorld"
   ],