Increasing time to abort

Tests/IntegrationTests/UICatalog/ScenarioTests.cs

@@ -42,7 +42,7 @@ public class ScenarioTests : TestsAllViews
         _output.WriteLine ($"Running Scenario '{scenarioType}'");
         var scenario = Activator.CreateInstance (scenarioType) as Scenario;
 
-        uint abortTime = 2000;
+        uint abortTime = 3000; // Some scenarios may take a while to quit, so we give them 3 seconds
         object? timeout = null;
         var initialized = false;
         var shutdownGracefully = false;