temp disable metrics server until certs are renewed [ci skip]

modules/kubernetes/main.tf

@@ -430,7 +430,7 @@ module "istio" {
 #   tls_secret_name = var.tls_secret_name
 # }
 
-module "metrics-server" {
-  source          = "./metrics-server"
-  tls_secret_name = var.tls_secret_name
-}
+# module "metrics-server" {
+#   source          = "./metrics-server"
+#   tls_secret_name = var.tls_secret_name
+# }