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/version.rb

@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 module Telegram
   module Bot
-    VERSION = '0.16.1'.freeze
+    VERSION = '0.16.1'
 
     def self.gem_version
       Gem::Version.new VERSION