Merge branch 'sbrightwell-update-min-master-version' into 'master'

Update gke.tf

See merge request gitlab-org/configure/examples/gitlab-terraform-gke!9

gke.tf

@@ -3,7 +3,7 @@ resource "google_container_cluster" "primary" {
   location                 = var.gcp_region
   remove_default_node_pool = true
   initial_node_count       = 1
-  min_master_version       = "1.20"
+  min_master_version       = "1.22"
   description              = var.cluster_description
 }