Skip deserializing the UpdateSystem RPC for now

Innersloth merged RepairSystem and UpdateSystem into one RPC and the
decoding now depends on *which* system is being deserialized.

src/Impostor.Server/Net/Inner/Objects/ShipStatus/InnerShipStatus.cs

@@ -106,7 +106,8 @@ namespace Impostor.Server.Net.Inner.Objects.ShipStatus
 
                 case RpcCalls.UpdateSystem:
                 {
-                    Rpc35UpdateSystem.Deserialize(reader, Game, out var systemType, out var playerControl, out var sequenceId, out var state, out var ventId);
+                    // TODO: properly deserialize this RPC
+                    // Rpc35UpdateSystem.Deserialize(reader, Game, out var systemType, out var playerControl, out var sequenceId, out var state, out var ventId);
                     break;
                 }