PHPORM-222 Register the BusServiceProvider when BatchRepository is built

[GromNaN]

Fix PHPORM-222
Fix #3060

MongoDBBusServiceProvider is not the provider of BatchRepository.
I could not reproduce the issue described in #3060, but it looks like this change should fix it.

Checklist

• Add tests and ensure they pass
• Add an entry to the CHANGELOG.md file
• Update documentation for new features

[degecko]

Correct me if I'm wrong, but doesn't this fix render the code from the register method useless?

If I'm correct in assuming that the idea was to extend the BatchRepository service provider for the case where the queue batching driver was set to mongodb, then the proposed solution will invalidate that solution.

It's also true that the way the BatchRepository resolver has been extended never actually worked. I think that's the actual bug that needs fixing.

[GromNaN]

Ok, I think I've found how this should be done.

Illuminate\Bus\BusServiceProvider is a DeferrableProvider. It's registered only when one of the services it provides is requested. But by extending this service in my provider, I replace the service provider that is registered. I with Laravel would call every providers that provide a given service, but there is only one.
I need to explicitly register the Illuminate\Bus\BusServiceProvider when my provider is registered.

Implementation changed

[GromNaN]

Ideally that could be solved in Laravel: laravel/framework#52251