EmployeeCenter: Absence attachment not visible to view after Approval

Originally from ticket #85650.

Workflow in pending you can view it, once approved, attachments are deleted in Absences.

This is due to the underlying Workflow from Oracle that we use does not save any attachments after final approval. The very latest WF from Oracle in v12.1.3 does allow this option and to support it means we have to upgrade our Absence WF to the latest level.