Revert "staging govuk::apps::ckan: (temporarily) disable harvester workers"
Revert "staging govuk::apps::ckan: (temporarily) disable harvester workers"

This reverts commit 635b51ba3254028a971195c1b9cb4a7abcbb3409.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet