MAGETWO-94052: CAPTCHA does not appear in "Log in" popup window

  - Added sleep for MTF test

Author: YevSent

dev/tests/functional/tests/app/Magento/Checkout/Test/TestStep/SelectCheckoutMethodStep.php

@@ -107,6 +107,7 @@ private function processLogin()
         if ($this->checkoutMethod === 'login') {
             if ($this->checkoutOnepage->getAuthenticationPopupBlock()->isVisible()) {
                 $this->checkoutOnepage->getAuthenticationPopupBlock()->loginCustomer($this->customer);
+                sleep(5);
                 $this->clickProceedToCheckoutStep->run();
             } else {
                 $this->checkoutOnepage->getLoginBlock()->loginCustomer($this->customer);