chore(deps): Update Terraform terraform-google-modules/vm/google to v13

Author: renovate[bot]

examples/managed_instance_group/main.tf

@@ -63,7 +63,7 @@ module "cloud-nat" {
 }
 module "mig_template" {
   source               = "terraform-google-modules/vm/google//modules/instance_template"
-  version              = "~> 11.0"
+  version              = "~> 13.0"
   network              = google_compute_network.default.self_link
   subnetwork           = google_compute_subnetwork.default.self_link
   service_account      = var.service_account
@@ -81,7 +81,7 @@ module "mig_template" {
 }
 module "mig" {
   source            = "terraform-google-modules/vm/google//modules/mig"
-  version           = "~> 11.0"
+  version           = "~> 13.0"
   instance_template = module.mig_template.self_link
   region            = var.region
   hostname          = var.network