Issue #3259112: Update Drush from ~10.0 to ~11.0

composer.json

@@ -67,7 +67,7 @@
   },
   "require-dev": {
     "drupal/core-dev": "~9.0",
-    "drush/drush": "~10.0",
+    "drush/drush": "~11.0",
     "drupal/drupal-extension": "~4.0",
     "emuse/behat-html-formatter": "^0.2.0"
   },

tests/README.md

@@ -20,7 +20,7 @@ composer create-project vardot/varbase:9.0.x-dev PROJECT_DIR_NAME --stability de
 ```
 cd path to your files of the project/PROJECT_DIR_NAME
 composer require --dev drupal/core-dev:~9.0
-composer require --dev drush/drush:~10
+composer require --dev drush/drush:~11.0
 composer require --dev drupal/drupal-extension:~4.0
 composer require --dev emuse/behat-html-formatter:^0.2.0