Update Requisition service for new requisition group program schedules endpoints

Description

This sub-task is for updating the Requisition service to use the new endpoints in reference data for Requisition Group Program Schedules.

Acceptance Criteria:
The Requisition Service backend code will be refactored to use the new endpoints

Assignee

Sebastian Brudziński

Reporter

Brandon Bowersox-Johnson

Labels

None

Sprint

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Fix versions

Priority

Major
Configure