DIS: DIS Cache

[arealmaas]

• Do we need to lift this up in the architecture forum?
• What alternatives do we have. Managed Redis vs Valkey
• Need for persistence or not
• Offer valkey in the cluster, if the team needs Redis, team can use managed redis or something else 🤷

[tjololo]

Summary from chat with @arealmaas and @sduranc: We start with an in cluster valkey cache. This seems like the best solution for DIS