MC-3864: Fix alpha value in background colour

- Fix divider tests

Author: davemacaulay

app/code/Magento/PageBuilder/Test/Mftf/Data/DividerData.xml

@@ -52,7 +52,7 @@
         <data key="fieldName">line_color</data>
         <data key="value">rgba(255, 87, 51, 0.5)</data>
         <data key="rgb">rgba(255, 87, 51, 0.5)</data>
-        <data key="editPanelValue">#ff5733</data>
+        <data key="editPanelValue">rgba(255, 87, 51, 0.5)</data>
     </entity>
     <entity name="PageBuilderDividerLineColor_HSL11_100_60" type="pagebuilder_divider_line_color_property">
         <data key="name">Line Color</data>

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

@@ -401,7 +401,7 @@
         <comment userInput="Validate Stage After Save" stepKey="commentValidateStage2"/>
         <actionGroup ref="validateDivider" stepKey="validateStage2">
             <argument name="page" value="DividerOnStage"/>
-            <argument name="color" value="PageBuilderDividerLineColor_RGB255_087_051"/>
+            <argument name="color" value="PageBuilderDividerLineColor_RGBA255_087_051_50"/>
             <argument name="thickness" value="PageBuilderDividerLineThickness_Default"/>
             <argument name="width" value="PageBuilderDividerLineWidth_Default"/>
         </actionGroup>
@@ -569,7 +569,7 @@
         <comment userInput="Validate Stage After Save" stepKey="commentValidateStage2"/>
         <actionGroup ref="validateDivider" stepKey="validateStage2">
             <argument name="page" value="DividerOnStage"/>
-            <argument name="color" value="PageBuilderDividerLineColor_HSL11_100_60"/>
+            <argument name="color" value="PageBuilderDividerLineColor_HSLA11_100_60_50"/>
             <argument name="thickness" value="PageBuilderDividerLineThickness_Default"/>
             <argument name="width" value="PageBuilderDividerLineWidth_Default"/>
         </actionGroup>
@@ -579,7 +579,7 @@
         <!-- Validate Edit Panel After Save -->
         <comment userInput="Validate Edit Panel After Save" stepKey="commentValidateEditPanel2"/>
         <actionGroup ref="seeInFieldSlideOutPropertyAlternate" stepKey="validateColor">
-            <argument name="property" value="PageBuilderDividerLineColor_HSL11_100_60"/>
+            <argument name="property" value="PageBuilderDividerLineColor_HSLA11_100_60_50"/>
         </actionGroup>
         <actionGroup ref="navigateToStoreFront" stepKey="navigateToStoreFront">
             <argument name="contentType" value="PageBuilderDividerContentType"/>