Bump rubocop from 0.88.0 to 0.89.0

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.88.0 to 0.89.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v0.88.0...v0.89.0)

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile

@@ -63,7 +63,7 @@ end
 group :development, :test do
   gem 'byebug'
   gem 'listen'
-  gem "rubocop", "~> 0.88", require: false
+  gem "rubocop", "~> 0.89", require: false
 end
 
 group :test do

Gemfile.lock

@@ -203,7 +203,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-support (3.9.3)
-    rubocop (0.88.0)
+    rubocop (0.89.0)
       parallel (~> 1.10)
       parser (>= 2.7.1.1)
       rainbow (>= 2.2.2, < 4.0)
@@ -212,8 +212,8 @@ GEM
       rubocop-ast (>= 0.1.0, < 1.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.2.0)
-      parser (>= 2.7.0.1)
+    rubocop-ast (0.3.0)
+      parser (>= 2.7.1.4)
     ruby-progressbar (1.10.1)
     rubyzip (2.0.0)
     safe_yaml (1.0.5)
@@ -323,7 +323,7 @@ DEPENDENCIES
   rails-dom-testing (~> 2.0.0)
   rails_autolink
   rspec-expectations
-  rubocop (~> 0.88)
+  rubocop (~> 0.89)
   sanitize (~> 5.2)
   sass-rails (~> 5.0)
   selenium-webdriver (~> 3.142)