Update rubopcop (#227)

* Update rubopcop [WIP]

* Further rubocop fixes

* Fix rubocop-rails cops

* Fix spec

* Disable rubocop suggestions

* Run rubocop in github actions rather than in codeclimate

lib/telegram/bot/railtie.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'telegram/bot/routes_helper'
 
 module Telegram
@@ -10,7 +12,7 @@ module Telegram
       end
 
       config.before_initialize do
-        ::ActionDispatch::Routing::Mapper.send(:include, RoutesHelper)
+        ::ActionDispatch::Routing::Mapper.include RoutesHelper
       end
 
       initializer 'telegram.bot.updates_controller.set_config' do |app|