Scope burnup charts to group or project

app/controllers/groups/milestones_controller.rb

@@ -6,7 +6,7 @@ class Groups::MilestonesController < Groups::ApplicationController
   before_action :milestone, only: [:edit, :show, :update, :merge_requests, :participants, :labels, :destroy]
   before_action :authorize_admin_milestones!, only: [:edit, :new, :create, :update, :destroy]
   before_action do
-    push_frontend_feature_flag(:burnup_charts)
+    push_frontend_feature_flag(:burnup_charts, @group)
   end
 
   def index

app/controllers/projects/milestones_controller.rb

@@ -7,7 +7,7 @@ class Projects::MilestonesController < Projects::ApplicationController
   before_action :check_issuables_available!
   before_action :milestone, only: [:edit, :update, :destroy, :show, :merge_requests, :participants, :labels, :promote]
   before_action do
-    push_frontend_feature_flag(:burnup_charts)
+    push_frontend_feature_flag(:burnup_charts, @project)
   end
 
   # Allow read any milestone