chore(deps): Update Terraform terraform-google-modules/vpc-service-controls/google to v6 (#899)

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

Author: renovate[bot]

test/fixtures/vpc_sc_project/main.tf

@@ -20,7 +20,7 @@ locals {
 
 module "regular_service_perimeter_1" {
   source         = "terraform-google-modules/vpc-service-controls/google//modules/regular_service_perimeter"
-  version        = "~> 5.0"
+  version        = "~> 6.0"
   policy         = var.policy_id
   perimeter_name = local.perimeter_name
   description    = "New service perimeter"