fix terratest

Author: yadavprakash

_example/redis-cluster/example.tf

@@ -44,7 +44,7 @@ module "redis-sg" {
 module "redis-cluster" {
   source = "./../../"
 
-  name        = "cluster-es"
+  name        = "cluster"
   environment = "test"
   label_order = ["name", "environment"]
 

_example/redis/example.tf

@@ -43,7 +43,7 @@ module "redis-sg" {
 
 module "redis" {
   source      = "./../../"
-  name        = "redis-es"
+  name        = "redis"
   environment = "test"
   label_order = ["name", "environment"]