Pull the redis interceptor spec out of quarantine

What does this MR do and why?

🛠 See #373026 (closed)

❗ I was not able to replicate ERR timeout is not an integer or out of range which was the original reason to quarantine the spec.
It is not exactly clear from #373026 (closed) how flaky it was.
I tried to replay it many times on my machine, and run multiple pipelines on this MR - it was not replicated 🤔

Instead, I was hitting Redis command PIPELINE/MULTI arguments hash to different slots both on CI and locally which is resolved by prefixing the keys with the {} part as described in https://docs.gitlab.com/ee/development/redis.html#multi-key-commands

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Related to #373026 (closed)