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] <[email protected]>

Gemfile

@@ -16,7 +16,7 @@ group :development, :test do
   gem "ffaker", "2.23.0", require: false
 
   # Task runner
-  gem "rake", "13.1.0", require: false
+  gem "rake", "13.2.1", require: false
 
   # Behavior-driven test framework
   gem "rspec", "3.13.0", require: false