[hmrc-manuals-api] Run foreman in dev
[hmrc-manuals-api] Run foreman in dev

This allows us to run a sidekiq worker by default in dev, which is useful
because it's needed for all publishing via the API.

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