Resize gitlab volume from 250G to 200G

250 is not a nice round number, whereas 200 is.

tf-stage1/archlinux.tf

@@ -477,7 +477,7 @@ variable "gitlab_pages_ipv6" {
 
 resource "hcloud_volume" "gitlab" {
   name      = "gitlab"
-  size      = 250
+  size      = 200
   server_id = hcloud_server.machine["gitlab.archlinux.org"].id
 }