Similar to what was done under SERVER-121287, we should make it such that all opCtx created by coordinators are marked as non-depriortizable within the critical section. The sharding coordinator already has a specialized makeOperationContext helper which sets forwardable op metadata on it, so we can extend this to also conditionally set the non-deprioritizable state.

One possible approach here would be to update the makeOpertionContext helper to take in a Phase. Then, for each coordinator we can have a function which returns whether or not a phase is in the critical section. This can then be used to decide whether or not to mark the new opCtx non-deprioritizable.