bundler: fix update (#390174)

  testers,

  bundler,

  versionCheckHook,

  nix-update-script,

}:

buildRubyGem rec {

  doInstallCheck = true;

  passthru = {

    updateScript = writeScript "gem-update-script" ''

      #!/usr/bin/env nix-shell

      #!nix-shell -i bash -p curl common-updater-scripts jq

      set -eu -o pipefail

      latest_version=$(curl -s https://rubygems.org/api/v1/gems/${gemName}.json | jq --raw-output .version)

      update-source-version ${gemName} "$latest_version"

    '';

    tests.version = testers.testVersion {

      package = bundler;

      command = "bundler -v";

      version = version;

    };

    updateScript = nix-update-script { };

  };

  meta = {