Bump terraform-google-modules/network/google in /terraform/infra-setup

Bumps [terraform-google-modules/network/google](https://github.com/terraform-google-modules/terraform-google-network) from 7.0.0 to 12.0.0.
- [Release notes](https://github.com/terraform-google-modules/terraform-google-network/releases)
- [Changelog](https://github.com/terraform-google-modules/terraform-google-network/blob/main/CHANGELOG.md)
- [Commits](terraform-google-modules/terraform-google-network@v7.0.0...v12.0.0)

---
updated-dependencies:
- dependency-name: terraform-google-modules/network/google
  dependency-version: 12.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]

terraform/infra-setup/main.tf

@@ -88,7 +88,7 @@ resource "local_file" "tf_backend_config" {
 
 module "gcp_network" {
   source  = "terraform-google-modules/network/google"
-  version = "7.0.0"
+  version = "12.0.0"
 
   project_id   = var.project_id
   network_name = local.network_name