Fix typo in redis cache example code

Signed-off-by: Huỳnh Văn Viên <[email protected]>

Author: vienhuynhemc

Diff for: src/main/antora/modules/ROOT/pages/redis/redis-cache.adoc

@@ -181,7 +181,7 @@ If all cache entries should expire after a set duration of time, then simply con
 [source,java]
 ----
 RedisCacheConfiguration fiveMinuteTtlExpirationDefaults =
-    RedisCacheConfiguration.defaultCacheConfig().enableTtl(Duration.ofMinutes(5));
+    RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofMinutes(5));
 ----
 
 However, if the TTL expiration timeout should vary by cache entry, then you must provide a custom implementation of the `RedisCacheWriter.TtlFunction` interface: