Self Scheduling API - Added repeat configuration

Description

Introduced a new field to the Self Scheduling API called repeat. This field configures when and how many times
a candidate should be prompted to select a time slot for an interview if they haven't already done so.
If not provided, the default behavior is to not repeat the prompt.

It is added to request of the following endpoints:

Impact

This enhancement is backward-compatible and does not require any changes to existing client implementations.

References