fix(deps)!: Update Terraform terraform-google-modules/pubsub/google to v8 (#285)

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

Author: renovate[bot]

main.tf

@@ -40,7 +40,7 @@ resource "google_cloud_scheduler_job" "job" {
 
 module "pubsub_topic" {
   source              = "terraform-google-modules/pubsub/google"
-  version             = "~> 7.0"
+  version             = "~> 8.0"
   topic               = var.topic_name
   project_id          = var.project_id
   create_topic        = var.scheduler_job == null ? true : false