drush updated to 9.0.0-beta9

[martinfrances107]

No description provided.

[socketwench]

This doesn't quite work for me, since the reset task fails after rebuilding the container with the updated drush:

fatal: [localhost]: FAILED! => {"changed": true, "cmd": "drush si --uri=http://web --root=/var/www/html --db-url=mysql://drupal:drupal@db/drupal -y --account-name=admin --account-pass=password", "delta": "0:00:00.337179", "end": "2017-11-25 15:54:58.792056", "failed": true, "rc": 1, "start": "2017-11-25 15:54:58.454877", "stderr": " [error] Could not determine target sites directory for site to install. Use --site-subdir to specify. ", "stderr_lines": [" [error] Could not determine target sites directory for site to install. Use --site-subdir to specify. "], "stdout": "", "stdout_lines": []}