Added wait

Author: pavan

app/code/Magento/Paypal/Test/Mftf/Test/GuestCheckoutUsingPayPalExpressCheckoutTest.xml

@@ -79,6 +79,7 @@
         </actionGroup>
         <!-- Goto Checkout Page -->
         <actionGroup ref="GoToCheckoutFromMinicartActionGroup" stepKey="goToCheckoutFromMinicart"/>
+        <waitForPageLoad stepKey="waitForShippingPage"/>
         <!--Fill Shipping Address-->
         <actionGroup ref="GuestCheckoutFillNewShippingAddressActionGroup" stepKey="fillShippingAddress">
             <argument name="customer" value="$$createCustomer$$" />