Mostly using autowiring to inject deps.
The only tricky part was for import because all producer use the same class and have a different alias. So we must write them down in the service definition, autowiring doesn't work in that case.
Usually:
- if a controller has a constructor, it means injected services are at least re-used once in actions
- otherwise, service are injected per action
And use DI to retrieve services in commands (except for `RedisWorkerCommand` where the container is injected, hard to find a better way, at least for now).
Looks like parameter for the `->dispatch(` have been flipped (event first then event name).
Define events should now extends `Symfony\Contracts\EventDispatcher\Event`
