Deprecate error code 54

src/Tgstation.Server.Api/Models/ErrorCode.cs

@@ -339,6 +339,7 @@ namespace Tgstation.Server.Api.Models
 		/// DMAPI validation timeout.
 		/// </summary>
 		[Description("The DreamDaemon startup timeout was hit before the DMAPI validated!")]
+		[Obsolete("Deprecated in favor of error code 52", true)]
 		DreamMakerValidationTimeout,
 
 		/// <summary>

src/Tgstation.Server.Host/Components/Deployment/DreamMaker.cs

@@ -231,7 +231,7 @@ namespace Tgstation.Server.Host.Components.Deployment
 			if (!controller.Lifetime.IsCompleted)
 			{
 				if (requireValidate)
-					throw new JobException(ErrorCode.DreamMakerValidationTimeout);
+					throw new JobException(ErrorCode.DreamMakerNeverValidated);
 				controller.Dispose();
 			}