Fix server applying the deployment low priority config to live servers and the live server priority config to deployments.

This was causing prod live byond servers to run in low priority if `Session:LowPriorityDeploymentProcesses` was enabled.

src/Tgstation.Server.Host/Components/Session/SessionControllerFactory.cs

@@ -525,7 +525,7 @@ namespace Tgstation.Server.Host.Components.Session
 
 			try
 			{
-				if (apiValidate)
+				if (!apiValidate)
 				{
 					if (sessionConfiguration.HighPriorityLiveDreamDaemon)
 						process.AdjustPriority(true);