Update RuboCop

Author: tagliala

.rubocop.yml

@@ -2,6 +2,8 @@ inherit_from: .rubocop_todo.yml
 
 require:
   - rubocop-packaging
+
+plugins:
   - rubocop-performance
   - rubocop-rake
   - rubocop-rspec
@@ -15,10 +17,6 @@ AllCops:
     - 'gemfiles/**/*'
     - 'vendor/bundle/**/*'
 
-RSpec/FilePath:
-  CustomTransform:
-    OmniAuth: omniauth
-
 RSpec/SpecFilePathFormat:
   CustomTransform:
     OmniAuth: omniauth

.rubocop_todo.yml

@@ -12,7 +12,7 @@
 require 'rack/test'
 require 'webmock/rspec'
 
-OmniAuth.config.logger = Logger.new('/dev/null')
+OmniAuth.config.logger = Logger.new(File::NULL)
 OmniAuth.config.request_validation_phase = nil
 
 # This file was generated by the `rspec --init` command. Conventionally, all