feat(wpcarro/ava): Enable printing

Gotta print stuffs at the office (every decade or so)

Change-Id: I3241b7a86eead50cadf785bb0204c803e40ac360
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6543
Reviewed-by: wpcarro <wpcarro@gmail.com>
Autosubmit: wpcarro <wpcarro@gmail.com>
Tested-by: BuildkiteCI

users/wpcarro/nixos/ava/default.nix

@@ -55,6 +55,11 @@ in
 
     openssh.enable = true;
 
+    printing = {
+      enable = true;
+      drivers = with pkgs; [ gutenprint ];
+    };
+
     xserver = {
       enable = true;
       layout = "us";