fix: update providers to include protocol prefix

providers.tf

@@ -3,7 +3,7 @@ provider "google" {
 }
 
 provider "kubernetes" {
-  host                   = google_container_cluster.primary.endpoint
+  host                   = "https://${google_container_cluster.primary.endpoint}"
   cluster_ca_certificate = base64decode(google_container_cluster.primary.master_auth.0.cluster_ca_certificate)
   token                  = data.google_client_config.current.access_token
 }