FEATURE: Merge discourse-automation (#26432)

Automation (previously known as discourse-automation) is now a core plugin.

plugins/automation/app/controllers/discourse_automation/admin_controller.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+module DiscourseAutomation
+  class AdminController < ::Admin::AdminController
+    requires_plugin DiscourseAutomation::PLUGIN_NAME
+
+    def index
+    end
+
+    def new
+    end
+
+    def edit
+    end
+  end
+end