884: Use Ruby 4.0 in CI

Author: ehimen-io

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1
+          ruby-version: 4.0
           bundler-cache: true
       - run: bundle install
       - run: bundle exec rspec
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1
+          ruby-version: 4.0
           bundler-cache: true
       - run: bundle install
       - run: bundle exec rubocop

action_network_rest.gemspec

@@ -21,7 +21,7 @@ Gem::Specification.new do |spec|
   end
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '>= 3.0.0'
+  spec.required_ruby_version = '>= 4.0.0'
 
   spec.add_dependency 'faraday', '~> 2.0'
   spec.add_dependency 'faraday-mashify', '~> 1.0'