MM-59934: Add Redis to CI and other improvements (#28164)

- Update library version.
- Added MaxFlush delay to help reduce CPU usage.
- Fall back to LRU cache for the caches which use SCAN.
- Added mattermost-redis and running for all api layer
tests in Postgres.

https://mattermost.atlassian.net/browse/MM-59934
```release-note
NONE
```

server/config.mk

@@ -5,12 +5,13 @@
 # Enable services to be run in docker.
 #
 # Possible options: mysql, postgres, minio, inbucket, openldap, dejavu,
-# keycloak, elasticsearch, prometheus, grafana, loki and promtail.
+# keycloak, elasticsearch, opensearch, redis, prometheus,
+# grafana, loki and promtail.
 #
 # Must be space separated names.
 #
 # Example: mysql postgres elasticsearch
-ENABLED_DOCKER_SERVICES ?= mysql postgres inbucket
+ENABLED_DOCKER_SERVICES ?= mysql postgres inbucket redis
 
 # Disable entirely the use of docker
 MM_NO_DOCKER ?= false