feat: add palettes and enums for MC 1.21.11 (protocol 774)

Add 17 new items (spears, nautilus armor, spawn eggs, netherite horse armor),
4 new entities (CamelHusk, Nautilus, Parched, ZombieNautilus), and 2 new
entity metadata serializer types (ZombieNautilusVariant, HumanoidArm).

Generated ItemPalette12111 (1505 items), EntityPalette12111 (157 entities),
and EntityMetadataPalette12111 (39 serializers) from server reports.

Made-with: Cursor

MinecraftClient/Mapping/EntityType.cs

@@ -35,6 +35,7 @@ namespace MinecraftClient.Mapping
         Breeze,
         BreezeWindCharge,
         Camel,
+        CamelHusk,
         Cat,
         CaveSpider,
         CherryBoat,
@@ -105,6 +106,7 @@ namespace MinecraftClient.Mapping
         Minecart,
         Mooshroom,
         Mule,
+        Nautilus,
         OakBoat,
         OakChestBoat,
         Ocelot,
@@ -113,6 +115,7 @@ namespace MinecraftClient.Mapping
         PaleOakBoat,
         PaleOakChestBoat,
         Panda,
+        Parched,
         Parrot,
         Phantom,
         Pig,
@@ -169,6 +172,7 @@ namespace MinecraftClient.Mapping
         Zoglin,
         Zombie,
         ZombieHorse,
+        ZombieNautilus,
         ZombieVillager,
         ZombifiedPiglin,
     }