Update RuboCop 0.43.0 -> 0.44.1 for Travis

Author: sds

Gemfile

@@ -12,7 +12,7 @@ gem 'travis', '~> 1.7'
 gem 'coveralls'
 
 # Pin RuboCop for Travis builds.
-gem 'rubocop', '0.43.0'
+gem 'rubocop', '0.44.1'
 
 # Prevent errors for Ruby < 2.1
 gem 'net-http-persistent', '~> 2.7'

lib/overcommit/hook_context/pre_push.rb

@@ -17,7 +17,7 @@ def pushed_refs
       end
     end
 
-    PushedRef = Struct.new(:local_ref, :local_sha1, :remote_ref, :remote_sha1) do
+    PushedRef = Struct.new(:local_ref, :local_sha1, :remote_ref, :remote_sha1) do # rubocop:disable Metrics/BlockLength, Metrics/LineLength
       def forced?
         !(created? || deleted? || overwritten_commits.empty?)
       end