chore(deps): Update Terraform terraform-google-modules/network/google to v12 (#218)

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

Author: renovate[bot]

examples/kubectl_wrapper_example/main.tf

@@ -37,7 +37,7 @@ module "enabled_google_apis" {
 
 module "gcp-network" {
   source       = "terraform-google-modules/network/google"
-  version      = "~> 11.0"
+  version      = "~> 12.0"
   project_id   = module.enabled_google_apis.project_id
   network_name = var.network