scanIterator on RedisSentinel

[benoitvidis]

Motivation

Currently, RedisSentinel does not implement scan iterators (tested on @redis/client 5.5.6).

The iterator is not available from a master lease either.

Even if the code is easy to replicate, this could be a nice addition.

Thank you!

Basic Code Example

[nkaradzhov]

Hi @benoitvidis, thanks for flagging this, we will consider adding it. Would you be willing to contribute maybe?