build(deps-dev): update rubocop requirement from ~> 0.66.0 to ~> 0.79.0

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@v0.66.0...v0.79.0)

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

Gemfile.lock

@@ -56,10 +56,10 @@ GEM
     rspec-support (3.9.0)
     rspec_junit_formatter (0.4.1)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (0.78.0)
+    rubocop (0.79.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
-      parser (>= 2.6)
+      parser (>= 2.7.0.1)
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 1.7)
@@ -99,7 +99,7 @@ DEPENDENCIES
   redcarpet (~> 3.5.0)
   rspec (~> 3.9.0)
   rspec_junit_formatter (~> 0.4.1)
-  rubocop (~> 0.78.0)
+  rubocop (~> 0.79.0)
   rubocop-performance (~> 1.5.2)
   rubocop-rspec (~> 1.37.1)
   simplecov (~> 0.17.0)

circleci.gemspec

@@ -28,7 +28,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rake',                '~> 13.0.0'
   s.add_development_dependency 'redcarpet',           '~> 3.5.0'
   s.add_development_dependency 'rspec',               '~> 3.9.0'
-  s.add_development_dependency 'rubocop',             '~> 0.78.0'
+  s.add_development_dependency 'rubocop',             '~> 0.79.0'
   s.add_development_dependency 'rubocop-performance', '~> 1.5.2'
   s.add_development_dependency 'rubocop-rspec',       '~> 1.37.1'
   s.add_development_dependency 'simplecov',           '~> 0.17.0'