Sake task failures

[emteknetnz]

Noticed there's a couple of the new sake tasks that cause issues on a default install of recipe-kitchen-sink for CMS 6

sake tasks:content-review-emails

ERROR [Emergency]: Uncaught TypeError: SilverStripe\ContentReview\Tasks\ContentReviewEmails::isValidEmail(): Argument #1 ($email) must be of type ?string, array given, called in /var/www/vendor/silverstripe/contentreview/src/Tasks/ContentReviewEmails.php on line 37
IN

sake tasks:userforms-column-clean

[SilverStripe\ORM\Connect\DatabaseException]
Couldn't run query:

SHOW COLUMNS
FROM SilverStripe\UserForms\Model\EditableFormField

You have an error in your SQL syntax; check the manual that corresponds to your Mar
iaDB server version for the right syntax to use near '\UserForms\Model\EditableForm
Field' at line 1

[GuySartorelli]

ContentReviewEmails::isValidEmail() is being removed in #193 so that one should take care of itself.

[emteknetnz]

silverstripe/silverstripe-userforms#1340 is removing userform-column-clean, so we likely don't need this card, so will close