Update feature category to runner for relevant controllers

app/controllers/admin/runner_projects_controller.rb

@@ -3,7 +3,7 @@
 class Admin::RunnerProjectsController < Admin::ApplicationController
   before_action :project, only: [:create]
 
-  feature_category :continuous_integration
+  feature_category :runner
 
   def create
     @runner = Ci::Runner.find(params[:runner_project][:runner_id])

app/controllers/projects/runner_projects_controller.rb

@@ -5,7 +5,7 @@ class Projects::RunnerProjectsController < Projects::ApplicationController
 
   layout 'project_settings'
 
-  feature_category :continuous_integration
+  feature_category :runner
 
   def create
     @runner = Ci::Runner.find(params[:runner_project][:runner_id])

app/controllers/runner_setup_controller.rb

 # frozen_string_literal: true
 
 class RunnerSetupController < ApplicationController
-  feature_category :continuous_integration
+  feature_category :runner
 
   def platforms
     render json: Gitlab::Ci::RunnerInstructions::OS.merge(Gitlab::Ci::RunnerInstructions::OTHER_ENVIRONMENTS)