MON-48: set the artificial_requests_count default value to 5

cloud/aws/apigateway/inputs.tf

@@ -60,6 +60,6 @@ variable "http_4xx_requests_threshold_warning" {
 }
 
 variable "artificial_requests_count" {
-  default     = 0
+  default     = 5
   description = "Number of false requests used to mitigate false positive in case of low trafic"
 }