Upgraded rubocop gem

Author: jasnow

Gemfile.lock

@@ -262,7 +262,7 @@ GEM
       rspec-mocks (~> 3.8.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
-    rubocop (0.66.0)
+    rubocop (0.67.1)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.5, != 2.5.1.1)