Bump rubocop-rails from 2.12.4 to 2.13.0 (#15891)

Bumps [rubocop-rails](https://github.com/rubocop/rubocop-rails) from 2.12.4 to 2.13.0.
- [Release notes](https://github.com/rubocop/rubocop-rails/releases)
- [Changelog](https://github.com/rubocop/rubocop-rails/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop/rubocop-rails/compare/v2.12.4...v2.13.0)

---
updated-dependencies:
- dependency-name: rubocop-rails
  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>
Co-authored-by: Michael Kohl <citizen428@forem.com>

Gemfile

@@ -149,7 +149,7 @@ group :development, :test do
   gem "rspec-rails", "~> 5.0" # rspec-rails is a testing framework for Rails 3+
   gem "rubocop", "~> 1.24", require: false # Automatic Ruby code style checking tool
   gem "rubocop-performance", "~> 1.12", 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-rails", "~> 2.13", require: false # Automatic Rails code style checking tool
   gem "rubocop-rspec", "~> 2.7", require: false # Code style checking for RSpec files
   gem "sassc-rails", "~> 2.1.2" # Integrate SassC-Ruby into Rails
   gem "spring", "~> 4.0" # Preloads your application so things like console, rake and tests run faster

Gemfile.lock

@@ -710,7 +710,7 @@ GEM
     rubocop-performance (1.12.0)
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
-    rubocop-rails (2.12.4)
+    rubocop-rails (2.13.0)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.7.0, < 2.0)
@@ -1030,7 +1030,7 @@ DEPENDENCIES
   rss (~> 0.2.9)
   rubocop (~> 1.24)
   rubocop-performance (~> 1.12)
-  rubocop-rails (~> 2.12)
+  rubocop-rails (~> 2.13)
   rubocop-rspec (~> 2.7)
   ruby-prof (~> 1.4)
   rubyzip (~> 2.3)