test: reduce polling frequency on PC API

Attempt to avoid RATE_LIMIT_EXCEEDED error in parallel tests.

Author: dkoshkin

test/e2e/framework/nutanix/client.go

@@ -55,8 +55,8 @@ func WaitForTaskCompletion(
 
 	if err := wait.PollUntilContextCancel(
 		ctx,
-		100*time.Millisecond,
-		true,
+		1*time.Second,
+		false,
 		func(ctx context.Context) (done bool, err error) {
 			task, err := v4Client.TasksApiInstance.GetTaskById(ptr.To(taskID))
 			if err != nil {