ISTWCMS-7160: fixing inline image test

acceptance/WcmsTestsImgInlineCest.php

@@ -75,6 +75,7 @@ class WcmsTestsImgInlineCest {
       // Ensure that the block is on the page.
       $i->waitForJS("return document.readyState === 'complete';", 30);
       $i->waitForElement(".uw-copy-text div " . $block . " img", 30);
+      $i->waitForElement('.uw-copy-text div img[alt="Inserted image in ' . $block . ' block"]');
 
       // Check that image's parent is a block.
       $i->seeElement(".uw-copy-text div " . $block . " img", ['alt' => 'Inserted image in ' . $block . ' block']);