Issue #3429050: Automated Drupal 11 compatibility fixes for bootstrap_layout_builder

This merge request was automatically created by the Project Update Bot. It contains the changes from run 11-120835.

src/Element/Container.php

@@ -2,14 +2,14 @@
 
 namespace Drupal\bootstrap_layout_builder\Element;
 
-use Drupal\Core\Render\Element\RenderElement;
+use Drupal\Core\Render\Element\RenderElementBase;
 
 /**
  * Provides a container wrapper element.
  *
  * @RenderElement("blb_container")
  */
-class Container extends RenderElement {
+class Container extends RenderElementBase {
 
   /**
    * {@inheritdoc}