Support for new JobFlow

[Pietrox]

I'm submitting a... feature request

taskforcesh/bullmq#454 - new Job Flow feature topic
taskforcesh/bullmq#468 - issue that I found out it's regarding nestjs/bull instead of the update

When using the standard:

constructor(@InjectQueue('QueueName') private readonly flow: Flow){}

The formula correctly injects the Queue but it will not allow to register the Parent/Child queue properly with their names provided like in new feature documentation:

https://docs.bullmq.io/guide/jobs/parent-child-jobs

Regarding bullmq vs bull package, both work really well by using the "Queue" class.

[kamilmysliwiec]

This package currently does not support bullmq library. Also, it's very likely we'll eventually publish a separate integration (outside of this package) instead of deprecating the bull itself (to avoid breaking changes).