Add GitLab Pages for pacman

Requested by Allan on IRC (-devops).

tf-stage1/archlinux.tf

@@ -185,6 +185,7 @@ locals {
     "rfc"             = "b457db2ce4ac4e162d2f4435f1fe1f39"
     "monthly-reports" = "a2d60657e960b480cdb229df7cc7edf3"
     "alpm-types"      = "610659aa8df9c0d8e4b1b7bb905ea2e3"
+    "pacman"          = "3c5fb9413c1d66dac516a08277575662"
   }
 
   # This creates archlinux.org TXT DNS entries