Update redis-client to v0.22.2

What does this MR do and why?

This drops the patch for the redis-client gem introduced in !153282 (merged) to avoid timeout errors with BLPOP/BRPOP commands when talking to Redis Sentinels.

Full diff: https://my.diffend.io/gems/redis-client/0.22.1/0.22.2

MR acceptance checklist

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Before	After

How to set up and validate locally

See !153282 (merged).