[API Overuse Study] Provision a Redis cluster on Kubernetes

[damondouglas]

This PR addresses #27088 by submitting Infrastructure-as-Code that provisions a Redis cluster on Kubernetes. The purpose of this PR is to provision an architecture requirement of the API Overuse Study (see linked issue for more details). Redis is the chosen backend for storing application state such as the API quota to simplify a stateless Kubernetes deployment workload. It's README includes instructions on expected usage.

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[damondouglas]

Thank you @tvalentyn !