Service desk setting relation is marked to be exported only on EE

We moved service desk feature to CE, but service_desk_setting relation is marked to be exported
only on EE version, check https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/import_export/project/import_export.yml#L457.

We should move the relation to be exported on CE.

Also, check if file_from_project_id, added on !67546 (merged) field can be allow listed.