Update minitest requirement from = 5.17.0 to = 5.18.0 (#2727)

Updates the requirements on [minitest](https://github.com/seattlerb/minitest) to permit the latest version.
- [Release notes](https://github.com/seattlerb/minitest/releases)
- [Changelog](https://github.com/minitest/minitest/blob/master/History.rdoc)
- [Commits](minitest/minitest@v5.17.0...v5.18.0)

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

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

Gemfile.lock

@@ -15,7 +15,7 @@ GEM
       concurrent-ruby (~> 1.0)
     json (2.6.3)
     method_source (1.0.0)
-    minitest (5.17.0)
+    minitest (5.18.0)
     parallel (1.22.1)
     parser (3.2.1.0)
       ast (~> 2.4.1)
@@ -63,7 +63,7 @@ PLATFORMS
 
 DEPENDENCIES
   faker!
-  minitest (= 5.17.0)
+  minitest (= 5.18.0)
   pry (= 0.14.2)
   rake (= 13.0.6)
   rubocop (= 1.46.0)

faker.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.metadata['rubygems_mfa_required'] = 'true'
 
   spec.add_dependency('i18n', '>= 1.8.11', '< 2')
-  spec.add_development_dependency('minitest', '5.17.0')
+  spec.add_development_dependency('minitest', '5.18.0')
   spec.add_development_dependency('pry', '0.14.2')
   spec.add_development_dependency('rake', '13.0.6')
   spec.add_development_dependency('rubocop', '1.46.0')