Update dependency minitest to v5.23.1

Author: renovate[bot]

Gemfile

@@ -24,7 +24,7 @@
 source 'https://rubygems.org'
 gemspec
 
-gem 'minitest', '5.23.0', require: false
+gem 'minitest', '5.23.1', require: false
 gem 'rake', '13.2.1', require: false
 gem 'rdoc', '6.6.3.1', require: false
 gem 'rspec-rails', '6.1.2', require: false