chore(deps): update terraform aws-ia/vpc/aws to v4.4.4 (#26)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

main.tf

@@ -1,7 +1,7 @@
 ## Provision the VPC for VPN
 module "vpc" {
   source  = "aws-ia/vpc/aws"
-  version = "4.4.3"
+  version = "4.4.4"
 
   name                     = var.name
   az_count                 = var.availability_zones

modules/shared/main.tf

@@ -2,7 +2,7 @@
 ## Provision a virtual private cloud
 module "vpc" {
   source  = "aws-ia/vpc/aws"
-  version = "4.4.3"
+  version = "4.4.4"
 
   name                     = var.name
   az_count                 = var.availability_zones