ACQE-6904: Organize failed tests of page builder and add pr_exclude

Adding pr_exclude to 1 more test

Author: Keerthana81187

app/code/Magento/PageBuilder/Test/Mftf/Test/AdminPageBuilderVideoTest/VideoValidateAutoplayEnabled.xml

@@ -18,6 +18,7 @@
             <testCaseId value="PB-423"/>
             <group value="pagebuilder"/>
             <group value="pagebuilder-video"/>
+            <group value="pr_exclude"/>
         </annotations>
         <before>
             <actionGroup ref="AdminLoginActionGroup" stepKey="loginAsAdmin"/>