Fixes #2064: Explicitly require Drush so it is present in tests.

Author: geerlingguy

default.config.yml

@@ -72,6 +72,7 @@ drupal_build_composer: false
 drupal_composer_path: "{{ config_dir }}/drupal.composer.json"
 drupal_composer_install_dir: "/var/www/drupalvm/drupal"
 drupal_composer_dependencies:
+  - "drush/drush:^10"
   - "drupal/devel:^4.0"
 
 # Set this to 'true' and 'drupal_build_makefile', 'drupal_build_composer' to 'false'

example.drupal.composer.json

@@ -19,7 +19,8 @@
         "composer/installers": "^1.9",
         "drupal/core-composer-scaffold": "^9",
         "drupal/core-project-message": "^9",
-        "drupal/core-recommended": "^9"
+        "drupal/core-recommended": "^9",
+        "drush/drush:^10"
     },
     "conflict": {
         "drupal/drupal": "*"