add option to support good job for background jobs instead of sidekiq

Gemfile.lock

@@ -94,6 +94,7 @@ GIT
   branch: required_for_knapsack_instances
   specs:
     hyku_knapsack (0.0.1)
+      good_job
       rails (>= 5.2.0)
 
 GIT

app/assets/javascripts/admin_color_select.js

@@ -17,4 +17,4 @@ $(document).on('turbolinks:load', function() {
       $(this).val($(this).data('default-value'))
     })
   })
-});
+});