Note for myself so I don't forget, we also need to rename the injection tokens for repositories (#106) for v6.

something that needs to be considered for this PR is that MikroORM via the re-export changes could be no longer viable as a DI token due to it potentially being another type e.g. MikroORM export from @mikro-orm/postgresql is actually PostgreSqlMikroORM.

import { MikroORM } from '@mikro-orm/postgresql'

@Injectable()
export class TestService {
  constructor(private readonly orm: MikroORM) {}
}

It would fail with the error Please make sure that the argument PostgreSqlMikroORM at index [0] is available in the RootTestModule context.

You can work around this via one of the following:

1. Keep MikroORM type import from @mikro-orm/core
2. Give MikroORM a context name and use @InjectMikroORM() decorator for injection