Support official redis cluster client

[wgiddens]

Problem Statement

The Redis integration should support the redis-py RedisCluster client.

Sentry already supports redis-py-cluster, but it is end of life and has been ported into the official redis-py package, which Sentry also supports. It just doesn't support RedisCluster in redis-py.

Solution Brainstorm

It looks like @md384 already has a PR up for this: #2394

I couldn't find a corresponding issue so wanted to make sure it gets triaged.

[sentrivana]

Hey @wgiddens 👋🏻 Thanks for helping us make sure the PR doesn't fall through the cracks.