Create service for updating a review assignment

[mkimberlin]

As a manager or admin, I want to update review assignments so that I can adjust who is assigned to review an employee.

Acceptance Criteria:

• The service allows a PUT request to an endpoint like /reviews/assignments/${id} with a JSON body containing:
  • revieweeId: The ID of the employee being reviewed.
  • reviewerId: The ID of the employee conducting the review.
  • reviewPeriodId: The ID of the review period that the assignment is related to.
  • approved: A boolean indicating if the review has been approved (true) or not (false).
• The service can only be called if the current user has the CAN_UPDATE_REVIEW_ASSIGNMENTS permission (must be created)
• The service only allows a review assigment to be adjusted if the reviewee is among the current user's reports, but NOT a direct report (i.e. at least one level removed).
• The service only allows a review assigment to have approved set to true if the current user has the CAN_APPROVE_ALL_REVIEW_ASSIGNMENTS permission (must be created) or if the reviewee is among their reports, but NOT a direct report (i.e. at least one level removed).
• The service returns a JSON response containing the details of the updatted assignment, including:
  • id: The unique identifier for the assignment.
  • revieweeId: The ID of the employee being reviewed.
  • reviewerId: The ID of the manager conducting the review.
  • reviewPeriodId: The ID of the review period that the review assignment relates to.
  • approved: A boolean indicating if the review has been approved (true) or not (false).