chore(terraform): pin registry module versions to prevent drift

Author: BK1031

infra/modules/eks/main.tf

@@ -9,7 +9,7 @@
 
 module "eks" {
   source  = "terraform-aws-modules/eks/aws"
-  version = "~> 21.0"
+  version = "21.24.0"
 
   name               = var.name
   kubernetes_version = var.kubernetes_version

infra/modules/vpc/main.tf

@@ -8,7 +8,7 @@
 
 module "vpc" {
   source  = "terraform-aws-modules/vpc/aws"
-  version = "~> 6.0"
+  version = "6.6.1"
 
   name = var.name
   cidr = var.cidr