nixos/mount-cifs: Automatically add cifs-utils whenever this module is included

modules/factory/mount-cifs.nix

@@ -7,7 +7,10 @@
     , UID
     , GID
     ,
-    }: {
+    }: { pkgs, ... }: {
+      environment.systemPackages = with pkgs; [
+        cifs-utils
+      ];
       fileSystems."${destination}" = {
         device = "//${host}/${resource}";
         fsType = "cifs";