Automated Project Update Bot fixes

This merge request was automatically created by the Project Update Bot. It contains the changes from run 11-121090.

tests/src/Functional/CountdownBlockTest.php

@@ -12,6 +12,11 @@ use Drupal\Tests\BrowserTestBase;
  */
 class CountdownBlockTest extends BrowserTestBase {
 
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
   /**
    * Set to TRUE to strict check all configuration saved.
    *
@@ -33,7 +38,7 @@ class CountdownBlockTest extends BrowserTestBase {
    *
    * @var array
    */
-  public static $modules = ['block', 'countdown'];
+  protected static $modules = ['block', 'countdown'];
 
   /**
    * {@inheritdoc}