add redis cluster support

[maldinixiang]

Description

code does not support redis cluster mode,add suupport

Type of Change

• New feature ()

How Has This Been Tested?

set REDIS_CLSUTER=1 and can connect to cluster redis

• TODO

[takatost]

You need to address these issues I've marked, or provide a valid reason.

[takatost]

Sorry, but I can't approve your PR since you keep closing request changes without providing a reason or making the necessary modifications.

[bowenliang123]

-1.

1. redis-py does have clustering support, referring to https://redis-py.readthedocs.io/en/stable/clustering.html . No necessary to add an outdated package redis-py-cluster which is last updated at May 30, 2021.
2. please properly fixed the comments raised.
3. no unit tests.