Update rubocop to 0.83.0

Authored-by: Greg Cobb <gcobb@pivotal.io>

Author: Gerg

.rubocop.yml

@@ -319,3 +319,9 @@ Layout/SpaceAroundMethodCallOperator:
 Style/ExponentialNotation:
   Enabled: true
 
+Layout/EmptyLinesAroundAttributeAccessor:
+  Enabled: false
+
+Style/SlicingWithRange:
+  Enabled: true
+

Gemfile

@@ -88,7 +88,7 @@ group :test do
   gem 'rspec-rails', '~> 3.9.1'
   gem 'rspec-wait'
   gem 'rspec_api_documentation', '>= 6.1.0'
-  gem 'rubocop', '~> 0.82.0'
+  gem 'rubocop', '~> 0.83.0'
   gem 'timecop'
   gem 'webmock', '> 2.3.1'
 end

Gemfile.lock

@@ -394,8 +394,7 @@ GEM
       activesupport (>= 3.0.0)
       mustache (~> 1.0, >= 0.99.4)
       rspec (~> 3.0)
-    rubocop (0.82.0)
-      jaro_winkler (~> 1.5.1)
+    rubocop (0.83.0)
       parallel (~> 1.10)
       parser (>= 2.7.0.1)
       rainbow (>= 2.2.2, < 4.0)
@@ -563,7 +562,7 @@ DEPENDENCIES
   rspec-rails (~> 3.9.1)
   rspec-wait
   rspec_api_documentation (>= 6.1.0)
-  rubocop (~> 0.82.0)
+  rubocop (~> 0.83.0)
   ruby-debug-ide (>= 0.7.0.beta4)
   rubyzip (>= 1.3.0)
   scientist (~> 1.1.0)