Merge pull request #312 from taketo1113/relax-require-ruby

Relax `required_ruby_version` to support Ruby 4.0

Author: PikachuEXE

.github/workflows/tests.yaml

@@ -29,6 +29,7 @@ jobs:
           - "3.2"
           - "3.3"
           - "3.4"
+          - "4.0"
         allow_failures:
           - false
         include:

contracts.gemspec

@@ -12,5 +12,5 @@ Gem::Specification.new do |s|
   s.files       = `git ls-files`.split("\n")
   s.homepage    = "https://github.com/egonSchiele/contracts.ruby"
   s.license     = "BSD-2-Clause"
-  s.required_ruby_version = [">= 3.0", "< 4"]
+  s.required_ruby_version = [">= 3.0", "< 5"]
 end