Update rake requirement from ~> 13.1.0 to ~> 13.2.1

Updates the requirements on [rake](https://github.com/ruby/rake) to permit the latest version.
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v13.1.0...v13.2.1)

---
updated-dependencies:
- dependency-name: rake
  dependency-type: direct:development
...

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

Author: dependabot[bot]

Gemfile

@@ -13,7 +13,7 @@ group :development do
     gem 'commonmarker', '~> 1.0.4', require: false
   end
   group :test do
-    gem 'rake', '~> 13.1.0'
+    gem 'rake', '~> 13.2.1'
     gem 'minitest', '~> 5.22.2'
   end
 end