Allow Ruby 4.0

Author: janlelis

CHANGELOG.md

@@ -1,4 +1,5 @@
-## 2.3.0 (unreleased)
+## Next (unreleased)
+* Relax Ruby version requirement to allow 4.0
 * Support Ruby 3.4 hash inspects (TODO)
 
 ## 2.2.2

wirb.gemspec

@@ -13,9 +13,9 @@ Gem::Specification.new do |s|
   s.extra_rdoc_files = ["README.md", "CHANGELOG.md", "COPYING.txt"]
   s.license     = 'MIT'
   s.metadata    = { "rubygems_mfa_required" => "true" }
-  s.required_ruby_version = '>= 2.0', '< 4.0'
+  s.required_ruby_version = '>= 2.0', '< 5.0'
   s.add_dependency 'paint', '>= 0.9', '< 4.0'
-  s.add_development_dependency 'rspec', '~> 2.14'
+  s.add_development_dependency 'rspec', '~> 2.99'
   s.add_development_dependency 'rake', '~> 13.0'
   s.add_development_dependency 'ruby_engine', '~> 2.0'
 end