chore(deps): update terraform cloudposse/elasticache-redis/aws to v1.9.1 (#17)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/modules/redis_cluster/main.tf

@@ -10,7 +10,7 @@ locals {
 
 module "redis" {
   source  = "cloudposse/elasticache-redis/aws"
-  version = "1.7.0"
+  version = "1.9.1"
 
   name = var.cluster_name