Issue #3292847: Add --with-all-dependencies to automation testing readme file

tests/README.md

@@ -21,7 +21,7 @@ composer create-project vardot/varbase:10.0.x-dev PROJECT_DIR_NAME --stability d
 cd path to your files of the project/PROJECT_DIR_NAME
 composer require --dev drupal/core-dev:~9.0
 composer require --dev drush/drush:~11.0
-composer require --dev drupal/drupal-extension:~4.0
+composer require --dev drupal/drupal-extension:~4.0 --with-all-dependencies
 composer require --dev emuse/behat-html-formatter:^0.2.0
 
 ```