Update test/Grpc.IntegrationTests/GrpcDurableTaskClientIntegrationTests.cs

Co-authored-by: Copilot <[email protected]>

Author: YunchuWang

test/Grpc.IntegrationTests/GrpcDurableTaskClientIntegrationTests.cs

@@ -638,7 +638,7 @@ static async Task<string> LongRunningOrchestration(TaskOrchestrationContext cont
             context.SetCustomStatus("waiting");
             // Wait for external event or a timer (30 seconds) to allow suspend/resume operations
             Task<string> eventTask = context.WaitForExternalEvent<string>("event");
-            Task timerTask = context.CreateTimer(TimeSpan.FromSeconds(30), CancellationToken.None);
+            Task timerTask = context.CreateTimer(TimeSpan.FromSeconds(30), context.CancellationToken);
             await Task.WhenAny(eventTask, timerTask);
 
             if (shouldThrow)