Function updateCheckpoint

updateCheckpoint(
    store: CheckpointStore,
    id: string,
    change: (current: FlowCheckpoint) => FlowCheckpoint,
): Promise<FlowCheckpoint>
Apply one transition through the store's CAS, re-applying it to the fresh record on conflict.
Parameters
- store: CheckpointStore
- id: string
- change: (current: FlowCheckpoint) => FlowCheckpoint
Returns Promise<FlowCheckpoint>