Fixing a syntax warning

Accidentally added a comma to the end of a list in ruby.

app/helpers/environments_helper.rb

@@ -12,7 +12,7 @@ module EnvironmentsHelper
       "endpoint" => folder_project_environments_path(@project, @folder, format: :json),
       "folder-name" => @folder,
       "can-create-deployment" => can?(current_user, :create_deployment, @project).to_s,
-      "can-read-environment" => can?(current_user, :read_environment, @project).to_s,
+      "can-read-environment" => can?(current_user, :read_environment, @project).to_s
     }
   end