Actually add the deploy docs job to Jenkins
Actually add the deploy docs job to Jenkins

I forgot to do this in https://github.com/alphagov/govuk-puppet/pull/9497. Without this, the job isn't actually added to Jenkins.

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