MC-3167: Update MFTF Tests

- update new tests from mainline to expand correct panel group

Author: anthoula

app/code/Magento/PageBuilder/Test/Mftf/Test/AdminPageBuilderCommonTest.xml

@@ -1361,6 +1361,9 @@
         <actionGroup ref="openPageBuilderOnCatalog" stepKey="enablePageBuilderOnCatalog"/>
         <!--Add button into PageBuilder-->
         <comment userInput="Add button into PageBuilder" stepKey="addButtonIntoPageBuilder"/>
+        <actionGroup ref="expandPageBuilderPanelGroup" stepKey="expandPageBuilderPanelGroupElements">
+            <argument name="group" value="PageBuilderButtonsContentType"/>
+        </actionGroup>
         <actionGroup ref="dragContentTypeToStage" stepKey="dragButtonIntoStage">
             <argument name="contentType" value="PageBuilderButtonsContentType"/>
         </actionGroup>
@@ -1464,6 +1467,9 @@
         <actionGroup ref="openPageBuilderOnCatalog" stepKey="enablePageBuilderOnCatalog"/>
         <!--Add button to PageBuilder-->
         <comment userInput="Add button to PageBuilder" stepKey="addButtonToPageBuilder"/>
+        <actionGroup ref="expandPageBuilderPanelGroup" stepKey="expandPageBuilderPanelGroupElements">
+            <argument name="group" value="PageBuilderButtonsContentType"/>
+        </actionGroup>
         <actionGroup ref="dragContentTypeToStage" stepKey="dragButtonIntoStage">
             <argument name="contentType" value="PageBuilderButtonsContentType"/>
         </actionGroup>