unpin the patch number

Author: renato-rudnicki

0-bootstrap/github.tf.example

@@ -93,7 +93,7 @@ module "gh_cicd" {
 
 module "gh_oidc" {
   source  = "terraform-google-modules/github-actions-runners/google//modules/gh-oidc"
-  version = "~> 4.0.0"
+  version = "~> 4.0"
 
   project_id  = module.gh_cicd.project_id
   pool_id     = "foundation-pool"