feat: enable shared runner by default

main.tf

@@ -1,9 +1,10 @@
 resource "gitlab_project" "project" {
-  name           = var.project_name
-  path           = var.project_path
-  description    = var.project_desc
-  namespace_id   = var.project_namespace_id
-  default_branch = var.project_default_branch
+  name                   = var.project_name
+  path                   = var.project_path
+  description            = var.project_desc
+  namespace_id           = var.project_namespace_id
+  default_branch         = var.project_default_branch
+  shared_runners_enabled = var.shared_runners_enabled
 }
 
 resource "gitlab_branch_protection" "default_branch_protection" {

variables.tf

@@ -28,3 +28,8 @@ variable "protection_merge_access_level" {
   type    = string
   default = "maintainer"
 }
+
+variable "shared_runners_enabled" {
+  type    = bool
+  default = true
+}