MC-3031: MFTF Test Updates

- fix issues with MFTF tests after merging in mainline

Author: krissyhiserote

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

@@ -1536,8 +1536,8 @@
             <argument name="contentType" value="PageBuilderColumnContentType"/>
             <argument name="containerTargetType" value="PageBuilderStage"/>
         </actionGroup>
-        <dontSeeElementInDOM selector="{{PageBuilderColumnSection.column}}" stepKey="dontSeeColumn"/>
-        <dontSeeElementInDOM selector="{{PageBuilderColumnSection.columnGroup}}" stepKey="dontSeeColumnGroup"/>
+        <dontSeeElementInDOM selector="{{ColumnOnBackend.column}}" stepKey="dontSeeColumn"/>
+        <dontSeeElementInDOM selector="{{ColumnOnBackend.columnGroup}}" stepKey="dontSeeColumnGroup"/>
     </test>
     <test name="ColumnCannotAddInsideColumn">
         <annotations>
@@ -1581,6 +1581,6 @@
             <argument name="contentTypeIndex" value="1"/>
             <argument name="containerTargetIndex" value="2"/>
         </actionGroup>
-        <seeNumberOfElements selector="{{PageBuilderColumnSection.allColumns}}" userInput="3" stepKey="seesThreeElementColumns"/>
+        <seeNumberOfElements selector="{{ColumnOnBackend.allColumns}}" userInput="3" stepKey="seesThreeElementColumns"/>
     </test>
 </tests>