bundlerUpdateScript: init and use (#64822)

pkgs/tools/admin/fastlane/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, bundlerEnv, ruby, makeWrapper }:
+{ stdenv, bundlerEnv, ruby, bundlerUpdateScript, makeWrapper }:
 
 stdenv.mkDerivation rec {
   name = "${pname}-${version}";
@@ -21,6 +21,8 @@ stdenv.mkDerivation rec {
      --set FASTLANE_SKIP_UPDATE_CHECK 1
   '';
 
+  passthru.updateScript = bundlerUpdateScript "fastlane";
+
   meta = with stdenv.lib; {
     description     = "A tool to automate building and releasing iOS and Android apps";
     longDescription = "fastlane is a tool for iOS and Android developers to automate tedious tasks like generating screenshots, dealing with provisioning profiles, and releasing your application.";
@@ -28,6 +30,7 @@ stdenv.mkDerivation rec {
     license         = licenses.mit;
     maintainers     = with maintainers; [
       peterromfeldhk
+      nicknovitski
     ];
   };
 }