expose base redis lib

[kaplanelad]

This pull request enhances the redis_rs library by enabling the utilization of a specified Redis version. This is achieved by allowing additional commands to be executed before registration. For instance, one can use the 'flushall' command as an example of a pre-registration command.

For example, I want to run this logic before registering:

    if let Some(pool) = &redis {
        let mut conn = pool.get().await.unwrap();
        sidekiq::redis_rs::cmd("FLUSHDB")
            .query_async::<_, ()>(conn.unnamespaced_borrow_mut())
            .await
            .unwrap();
    }

[film42]

Good idea! Thanks!

[film42]

Released with 0.8.1