Bump rubocop from 1.21.0 to 1.22.0 (#14861)

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.21.0 to 1.22.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop/rubocop/compare/v1.21.0...v1.22.0)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -144,7 +144,7 @@ group :development, :test do
   gem "pry", "~> 0.14" # An IRB alternative and runtime developer console
   gem "pry-rails", "~> 0.3" # Use Pry as your rails console
   gem "rspec-rails", "~> 5.0" # rspec-rails is a testing framework for Rails 3+
-  gem "rubocop", "~> 1.21", require: false # Automatic Ruby code style checking tool
+  gem "rubocop", "~> 1.22", require: false # Automatic Ruby code style checking tool
   gem "rubocop-performance", "~> 1.11", require: false # A collection of RuboCop cops to check for performance optimizations in Ruby code
   gem "rubocop-rails", "~> 2.12", require: false # Automatic Rails code style checking tool
   gem "rubocop-rspec", "~> 2.5", require: false # Code style checking for RSpec files

Gemfile.lock

@@ -673,16 +673,16 @@ GEM
     rspec-support (3.10.2)
     rss (0.2.9)
       rexml
-    rubocop (1.21.0)
+    rubocop (1.22.0)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml
-      rubocop-ast (>= 1.9.1, < 2.0)
+      rubocop-ast (>= 1.12.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.11.0)
+    rubocop-ast (1.12.0)
       parser (>= 3.0.1.1)
     rubocop-performance (1.11.5)
       rubocop (>= 1.7.0, < 2.0)
@@ -983,7 +983,7 @@ DEPENDENCIES
   rspec-rails (~> 5.0)
   rspec-retry (~> 0.6)
   rss (~> 0.2.9)
-  rubocop (~> 1.21)
+  rubocop (~> 1.22)
   rubocop-performance (~> 1.11)
   rubocop-rails (~> 2.12)
   rubocop-rspec (~> 2.5)