Fix ageable entity scales not applying by default

Fixes #3486

core/src/main/java/org/geysermc/geyser/entity/type/living/AgeableEntity.java

@@ -40,6 +40,12 @@ public class AgeableEntity extends CreatureEntity {
         super(session, entityId, geyserId, uuid, definition, position, motion, yaw, pitch, headYaw);
     }
 
+    @Override
+    protected void initializeMetadata() {
+        // Required as of 1.19.3 Java
+        dirtyMetadata.put(EntityData.SCALE, getAdultSize());
+    }
+
     public void setBaby(BooleanEntityMetadata entityMetadata) {
         boolean isBaby = entityMetadata.getPrimitiveValue();
         dirtyMetadata.put(EntityData.SCALE, isBaby ? getBabySize() : getAdultSize());

core/src/main/java/org/geysermc/geyser/entity/type/living/animal/RabbitEntity.java

@@ -25,7 +25,6 @@
 
 package org.geysermc.geyser.entity.type.living.animal;
 
-import com.github.steveice10.mc.protocol.data.game.entity.metadata.type.BooleanEntityMetadata;
 import com.github.steveice10.mc.protocol.data.game.entity.metadata.type.IntEntityMetadata;
 import com.nukkitx.math.vector.Vector3f;
 import com.nukkitx.protocol.bedrock.data.entity.EntityData;
@@ -42,11 +41,6 @@ public class RabbitEntity extends AnimalEntity {
         super(session, entityId, geyserId, uuid, definition, position, motion, yaw, pitch, headYaw);
     }
 
-    @Override
-    public void setBaby(BooleanEntityMetadata entityMetadata) {
-        super.setBaby(entityMetadata);
-    }
-
     public void setRabbitVariant(IntEntityMetadata entityMetadata) {
         int variant = entityMetadata.getPrimitiveValue();