fix default size

variables.tf

@@ -46,10 +46,10 @@ variable "data-node-count" {
 
 variable "re-instance-type" {
   description = "The size of instance to run"
-  default     = "m5a.2xlarge"
+  default     = "t2.2xlarge"
 }
 
 variable "re-volume-size" {
   description = "The size of the two volumes to attach"
   default     = "150"
-}
+}