Function setup_db 

async fn setup_db(
    opts: &CliOpts,
    config: &Config,
) -> Result<(Arc<ManyCar<Arc<GarbageCollectableParityDb>>>, DbMetadata)>

This function configures database with below steps

• migrate database auto-magically on Forest version bump
• load parity-db
• load CAR database
• load actor bundles