Gemfile in dynflow-1.3.0 vs Gemfile in dynflow-1.4.0

@@ -1,5 +1,6 @@
+# frozen_string_literal: true
 source 'https://rubygems.org'
 
 gemspec
 
 group :concurrent_ruby_ext do
@@ -7,9 +8,14 @@
 end
 
 group :pry do
   gem 'pry'
   gem 'pry-byebug'
+end
+
+group :sidekiq do
+  gem 'sidekiq'
+  gem 'gitlab-sidekiq-fetcher', :require => 'sidekiq-reliable-fetch'
 end
 
 group :postgresql do
   gem "pg"
 end