adding update the jeeves

common/optional/update.nix

@@ -5,5 +5,7 @@
     randomizedDelaySec = "1h";
     persistent = true;
     flake = "github:RichieCahill/dotfiles";
+    allowReboot = true;
+    dates = "Sat *-*-* 06:00:00";
   };
 }