Nulling redis certificate variables as default (#359)

Author: jkerry

variables.tf

@@ -125,19 +125,19 @@ variable "enable_redis_mtls" {
 variable "redis_client_key_secret_id" {
   type        = string
   description = "The secrets manager secret ID of the Base64 & PEM encoded private key for redis."
-  default     = false
+  default     = null
 }
 
 variable "redis_client_certificate_secret_id" {
   type        = string
   description = "The secrets manager secret ID of the Base64 & PEM encoded certificate for redis."
-  default     = false
+  default     = null
 }
 
 variable "redis_ca_certificate_secret_id" {
   type        = string
   description = "The secrets manager secret ID of the Base64 & PEM encoded certificate for redis."
-  default     = false
+  default     = null
 }
 
 variable "redis_cache_size" {