bundlerUpdateScript: init and use (#64822)

pkgs/development/tools/redis-dump/default.nix

@@ -1,15 +1,17 @@
-{ lib, bundlerApp }:
+{ lib, bundlerApp, bundlerUpdateScript }:
 
 bundlerApp {
   pname = "redis-dump";
   gemdir = ./.;
   exes = [ "redis-dump" ];
 
+  passthru.updateScript = bundlerUpdateScript "redis-dump";
+
   meta = with lib; {
     description = "Backup and restore your Redis data to and from JSON";
     homepage    = http://delanotes.com/redis-dump/;
     license     = licenses.mit;
-    maintainers = with maintainers; [ offline manveru ];
+    maintainers = with maintainers; [ offline manveru nicknovitski ];
     platforms   = platforms.unix;
   };
 }