[thanos][staging] - enable memcached for thanos-staging query-frontend
What
- Enables memcached for thanos-query in staging
- Updates memory limits due to high cardinality metrics
Why
We are swapping to memcached for thanos to mirror our production setup.
Up to now it was using redis to evaluate a possible migration to redis for caching.
However as it's becoming clearer we will likely migrate to mimir, we are best to stay in line with our production setup.