Upgrade to gitlab-styles 6.1.0

Enable new cops in RuboCop 0.9.3.

.rubocop.yml

@@ -620,3 +620,12 @@ Gitlab/NamespacedClass:
     - 'ee/elastic/**/*.rb'
     - 'scripts/**/*'
     - 'spec/migrations/**/*.rb'
+
+Lint/HashCompareByIdentity:
+  Enabled: true
+
+Lint/RedundantSafeNavigation:
+  Enabled: true
+
+Style/ClassEqualityComparison:
+  Enabled: true

Gemfile

@@ -379,7 +379,7 @@ group :development, :test do
   gem 'spring', '~> 2.1.0'
   gem 'spring-commands-rspec', '~> 1.0.4'
 
-  gem 'gitlab-styles', '~> 6.0.0', require: false
+  gem 'gitlab-styles', '~> 6.1.0', require: false
 
   gem 'haml_lint', '~> 0.36.0', require: false
   gem 'bundler-audit', '~> 0.7.0.1', require: false

Gemfile.lock

@@ -88,7 +88,7 @@ GEM
       asciidoctor (~> 2.0)
     asciidoctor-plantuml (0.0.12)
       asciidoctor (>= 1.5.6, < 3.0.0)
-    ast (2.4.1)
+    ast (2.4.2)
     atlassian-jwt (0.2.0)
       jwt (~> 2.1.0)
     attr_encrypted (3.1.0)
@@ -195,7 +195,7 @@ GEM
     concord (0.1.5)
       adamantium (~> 0.2.0)
       equalizer (~> 0.0.9)
-    concurrent-ruby (1.1.7)
+    concurrent-ruby (1.1.8)
     connection_pool (2.2.2)
     contracts (0.11.0)
     cork (0.3.0)
@@ -463,8 +463,8 @@ GEM
       pry (~> 0.13.0)
     gitlab-sidekiq-fetcher (0.5.5)
       sidekiq (~> 5)
-    gitlab-styles (6.0.0)
-      rubocop (~> 0.91.1)
+    gitlab-styles (6.1.0)
+      rubocop (~> 0.91, >= 0.91.1)
       rubocop-gitlab-security (~> 0.1.1)
       rubocop-performance (~> 1.9.2)
       rubocop-rails (~> 2.9)
@@ -608,7 +608,7 @@ GEM
       mime-types (~> 3.0)
       multi_xml (>= 0.5.2)
     httpclient (2.8.3)
-    i18n (1.8.7)
+    i18n (1.8.9)
       concurrent-ruby (~> 1.0)
     i18n_data (0.8.0)
     icalendar (2.4.1)
@@ -1076,16 +1076,16 @@ GEM
       pg
       rails
       sqlite3
-    rubocop (0.91.1)
+    rubocop (0.93.1)
       parallel (~> 1.10)
-      parser (>= 2.7.1.1)
+      parser (>= 2.7.1.5)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 1.7)
+      regexp_parser (>= 1.8)
       rexml
-      rubocop-ast (>= 0.4.0, < 1.0)
+      rubocop-ast (>= 0.6.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.8.0)
+    rubocop-ast (1.4.1)
       parser (>= 2.7.1.5)
     rubocop-gitlab-security (0.1.1)
       rubocop (>= 0.51)
@@ -1422,7 +1422,7 @@ DEPENDENCIES
   gitlab-net-dns (~> 0.9.1)
   gitlab-pry-byebug
   gitlab-sidekiq-fetcher (= 0.5.5)
-  gitlab-styles (~> 6.0.0)
+  gitlab-styles (~> 6.1.0)
   gitlab_chronic_duration (~> 0.10.6.2)
   gitlab_omniauth-ldap (~> 2.1.1)
   gon (~> 6.2)