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GrowthBook Users

Hi, does `growthbook-proxy` support using a Redis instance with <https://redis.io/docs/latest/operate/oss_and_stack/management/sentinel/|Sentinel> enabled for the cache backend?

More details:
We are getting errors that make it look like `growthbook-proxy` is trying to write to read-only redis nodes, which sentinel should prevent.

We've started hosting `growthbook-proxy` in our k8s infrastructure as a proxy for Growthbook Cloud, but are getting intermittent errors when using Redis as the `CACHE_ENGINE` , particularly when quickly switching the feature on and off (server sent events).
• We've set `REDIS_URL=redis://:&lt;PASSWORD&gt;@&lt;REDIS-SVC-NAME&gt;.&lt;NAMESPACE&gt;.svc.cluster.local` 
• We are connecting to a shared Redis instance that uses <https://redis.io/docs/latest/operate/oss_and_stack/management/sentinel/|Redis Sentinel>
• The specific error in the `growthbook-proxy`logs is: `ReplyError: READONLY You can't write against a read only replica.\n    at parseError (/usr/local/src/app/node_modules/redis-parser/lib/parser.js:179:12`
• We also intermittent connection errors in the UI for the SDK Connection (`POST returned an invalid status code: 500`)


We do not officially support this, however it's something we could consider adding support for with enough interest. (Or if anybody wanted to open up a PR to introduce support...)