Fix AI not shutting down their operator (#1176)

Was banging my head against the wall for this because I R dumb.
It only ever popped up when large numbers of AI were spawned in.

Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>

Content.Server/AI/Utility/AiLogic/UtilityAI.cs

@@ -152,6 +152,12 @@ namespace Content.Server.AI.Utility.AiLogic
             {
                 return;
             }
+            
+            var currentOp = CurrentAction?.ActionOperators.Peek();
+            if (currentOp != null && currentOp.HasStartup)
+            {
+                currentOp.Shutdown(Outcome.Failed);
+            }
 
             CurrentAction = action;
             action.SetupOperators(_blackboard);