Update rubocop requirement from ~> 0.80.0 to ~> 0.81.0

Updates the requirements on [rubocop](https://github.com/rubocop-hq/rubocop) to permit the latest version.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v0.80.0...v0.81.0)

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

Gemfile.lock

@@ -190,14 +190,14 @@ GEM
       rspec-mocks (~> 3.9)
       rspec-support (~> 3.9)
     rspec-support (3.9.2)
-    rubocop (0.80.1)
+    rubocop (0.81.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.7.0.1)
       rainbow (>= 2.2.2, < 4.0)
       rexml
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 1.7)
+      unicode-display_width (>= 1.4.0, < 2.0)
     rubocop-rails (2.5.2)
       activesupport
       rack (>= 1.1)
@@ -240,7 +240,7 @@ GEM
       sync
     tzinfo (1.2.7)
       thread_safe (~> 0.1)
-    unicode-display_width (1.6.1)
+    unicode-display_width (1.7.0)
     warden (1.2.8)
       rack (>= 2.0.6)
     websocket-driver (0.6.5)
@@ -269,7 +269,7 @@ DEPENDENCIES
   rails (~> 5.0.0)
   rails-controller-testing
   rails_email_validator
-  rubocop (~> 0.80.0)
+  rubocop (~> 0.81.0)
   rubocop-rails
   solargraph
   sqlite3 (~> 1.3.0)

devise-security.gemspec

@@ -46,7 +46,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'pry-rescue'
   s.add_development_dependency 'rails-controller-testing'
   s.add_development_dependency 'rails_email_validator'
-  s.add_development_dependency 'rubocop', '~> 0.80.0' # NOTE: also update .codeclimate.yml and make sure it uses the same version
+  s.add_development_dependency 'rubocop', '~> 0.81.0' # NOTE: also update .codeclimate.yml and make sure it uses the same version
   s.add_development_dependency 'rubocop-rails'
   s.add_development_dependency 'solargraph'
   s.add_development_dependency 'sqlite3'