MM-56876: Redis: first introduction (#27752)

```release-note
NONE
```

---------

Co-authored-by: Jesús Espino <jespinog@gmail.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/app/platform/link_cache.go

@@ -12,7 +12,7 @@ import (
 const LinkCacheSize = 10000
 const LinkCacheDuration = 1 * time.Hour
 
-var linkCache = cache.NewLRU(cache.LRUOptions{
+var linkCache = cache.NewLRU(&cache.CacheOptions{
 	Size: LinkCacheSize,
 })