Switch taskCron to use drush alias for cron.
Switch taskCron to use drush alias for cron.

Brings Drupal 7 & 8 in-line with the command call.

Signed-off-by: Karl Hepworth <c14c6f041bb80410635ef9142e07c8627a565b5a@gmail.com>

amazeeio/lagoon,amazeeio/lagoon,amazeeio/lagoon,amazeeio/lagoon,amazeeio/lagoon,amazeeio/lagoon,amazeeio/lagoon