Use cluster-aware redis client

[dimbleby]

Running against Azure Managed Redis with its default clustering policy "OSSCluster" we see failures with redis.exceptions.MovedError

Apparently the solution should be to use a cluster-aware client, as in from redis.cluster import RedisCluster etc

(See also: https://learn.microsoft.com/en-nz/answers/questions/5612078/having-issues-with-redis-clustering-on-azure-manag)

[dimbleby]

switching to policy "EnterpriseCluster" works around.

I see that #381 asks for similar.

[amirreza8002]

if there would be a plan to add cluster support, i might be able to do the work

tho in valeky-py, which is a fork of redis-py, this issue exists
valkey-io/valkey-py#223

i would guess the same issue applies to redis-py, should investigate