Add plugin queue to sidekiq config [ci skip]

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

config/sidekiq_queues.yml

@@ -68,3 +68,4 @@
   - [project_migrate_hashed_storage, 1]
   - [storage_migrator, 1]
   - [pages_domain_verification, 1]
+  - [plugin, 1]

lib/gitlab/plugin.rb

@@ -7,9 +7,9 @@ module Gitlab
     end
 
     def self.execute_all_async(data)
-      files.each do |file|
-        PluginWorker.perform_async(file, data)
-      end
+      args = files.map { |file| [file, data] }
+
+      PluginWorker.bulk_perform_async(args)
     end
 
     def self.execute(file, data)

lib/tasks/plugins.rake

@@ -13,4 +13,9 @@ namespace :plugins do
       end
     end
   end
+
+  desc 'Validate existing plugins'
+  task validate_async: :environment do
+    Gitlab::Plugin.execute_all_async(Gitlab::DataBuilder::Push::SAMPLE_DATA)
+  end
 end