fix for positive4 test to "Unknown Port Exposed To Internet"

* Fixed the field naming and value for the positive4 test

Author: cx-andre-pereira

assets/queries/terraform/aws/unknown_port_exposed_to_internet/test/positive4.tf

@@ -45,7 +45,7 @@ module "vote_service_sg_ipv4_array" {
       from_port   = 2000
       to_port     = 2500
       protocol    = "tcp"
-      ipv6_cidr_blocks = ["::/0"]
+      cidr_blocks = ["0.0.0.0/0"]
     }
   ]
 }