MC-14738:OnePageCheckout using sign in link test

Added Bugfixes

Author: subratpandit

app/code/Magento/Checkout/Test/Mftf/Test/OnePageCheckoutUsingSignInLinkTest.xml

@@ -29,6 +29,12 @@
 
             <!-- Create customer -->
             <createData entity="Simple_US_Customer_With_Different_Billing_Shipping_Addresses" stepKey="createCustomer"/>
+            <actionGroup ref="CliIndexerReindexActionGroup" stepKey="reindexConfig">
+                <argument name="indices" value=""/>
+            </actionGroup>
+            <actionGroup ref="CliCacheCleanActionGroup" stepKey="cleanCacheConfig">
+                <argument name="tags" value="config full_page"/>
+            </actionGroup>
         </before>
         <after>
             <!-- Admin log out -->