monolith: add nix update script

Author: aktaboot

pkgs/tools/backup/monolith/default.nix

@@ -6,6 +6,7 @@
 , libiconv
 , Security
 , SystemConfiguration
+, nix-update-script
 }:
 
 rustPlatform.buildRustPackage rec {
@@ -29,6 +30,8 @@ rustPlatform.buildRustPackage rec {
 
   checkFlags = [ "--skip=tests::cli" ];
 
+  passthru.updateScript = nix-update-script { };
+
   meta = with lib; {
     description = "Bundle any web page into a single HTML file";
     mainProgram = "monolith";