Add publishing-api to search-admin's bowl dependencies
Add publishing-api to search-admin's bowl dependencies

Search admin will soon publish external content to the publishing API
rather than rummager, so bowl should start the publishing-api in dev
when running search-admin.

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