Add a temporary task to migrate manuals
Add a temporary task to migrate manuals

Manuals publishing will soon be handled by the 'Manuals Publisher'
application which is essentially the manuals-specific parts of
Specialist Publisher v1 repurposed.

Specialist Publisher will be restricted to publishing specialist
content like aaib reports. This means that content items with a
document_type of manuals or manual_sections will have an incorrect
publishing_app value as they are currently set to
'specialist-publisher'.

Update the relevant manuals content items publishing_app value
to be manuals-publisher.

Also update any relevant PathReservation records to the correct
publishing_app.

alphagov/publishing-api,alphagov/publishing-api