Re-export missing submissions

[benjay10]

[DL-6349]

A number of submissions were missed by the prepare-submissions-for-export service, certain submissions were not properly exported by the delta-producer-publication-graph-maintainer, and certain submissions were not properly consumed and/or dispatched by the Worship Decisions Database application. Solved by re-exporting all of these by two mechanisms:

• Some submissions still needed their schema:publication triple
  • Sending mock delta messages via a script to the prepare-submissions-for-export service to restart the process
• The rest is simply removed from the publication-triplestore and re-produced via healing

These instructions are laid out in the CHANGELOG.

[claire-lovisa]

The instructions are clear, I tested and was able to see the missing submissions being produced. It's also handy to have a migration service for the publication triplestore, will help keeping trace of the fixes we do