Fix(booking-job): Ensure all refresh cancelled

backend/internal/ktmtrainbot/backgroundbookingjob.go

@@ -342,6 +342,7 @@ func chooseAndMakePayment(timerCtx context.Context, creditCardType, creditCard,
 		select {
 		case <-timerCtx.Done():
 			browser.MustClose()
+			cancelRefresh()
 			return false
 		default:
 		}