Makes humanoid appearance component networked. (#13009)

Fixes https://github.com/space-wizards/space-station-14/issues/12248

Content.Server/Polymorph/Systems/PolymorphableSystem.cs

@@ -32,7 +32,7 @@ namespace Content.Server.Polymorph.Systems
         [Dependency] private readonly DamageableSystem _damageable = default!;
         [Dependency] private readonly MobThresholdSystem _mobThresholdSystem = default!;
         [Dependency] private readonly IMapManager _mapManager = default!;
-        [Dependency] private readonly HumanoidSystem _humanoid = default!;
+        [Dependency] private readonly HumanoidAppearanceSystem _humanoid = default!;
         [Dependency] private readonly ContainerSystem _container = default!;
 
         public override void Initialize()