fix(ttlru): correct broken link to expirable package (#382)

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: mfernest

modules/components/pages/caches/ttlru.adoc

@@ -38,7 +38,7 @@ The cache ttlru provides a simple, goroutine safe, cache with a fixed number of
 
 This TTL is reset on both modification and access of the value. As a result, if the cache is full, and no items have expired, when adding a new item, the item with the soonest expiration will be evicted.
 
-It uses the package https://github.com/hashicorp/golang-lru/v2/expirable[`expirable`^]
+It uses the package https://github.com/hashicorp/golang-lru/tree/main/expirable[`expirable`^]
 
 The field init_values can be used to pre-populate the memory cache with any number of key/value pairs: