Drop Ruby 2.4 support

.github/workflows/ci.yml

@@ -12,11 +12,6 @@ jobs:
       matrix:
         ruby: [2.7, 3.0, 3.1, 3.2, 3.3]
         graphql_version: ['~> 1.12.18', '~> 1.13', '~> 2.0']
-        include:
-          - ruby: 2.4
-            graphql_version: '~> 1.12.18'
-          - ruby: 2.4
-            graphql_version: '~> 1.13'
     steps:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1

Gemfile

@@ -3,7 +3,5 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'graphql', ENV['GRAPHQL_VERSION'] if ENV['GRAPHQL_VERSION']
-if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('2.4.0')
-  gem 'rubocop', '~> 1.61.0', require: false
-  gem "rubocop-shopify", '~> 1.0.7', require: false
-end
+gem 'rubocop', '~> 1.61.0', require: false
+gem "rubocop-shopify", '~> 1.0.7', require: false

Rakefile

@@ -9,11 +9,9 @@ end
 
 task(default: :test)
 
-if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('2.4.0')
-  task :rubocop do
-    require 'rubocop/rake_task'
-    RuboCop::RakeTask.new
-  end
-
-  task(default: :rubocop)
+task :rubocop do
+  require 'rubocop/rake_task'
+  RuboCop::RakeTask.new
 end
+
+task(default: :rubocop)

graphql-batch.gemspec

@@ -10,7 +10,7 @@ Gem::Specification.new do |spec|
   spec.homepage      = "https://github.com/Shopify/graphql-batch"
   spec.license       = "MIT"
 
-  spec.required_ruby_version = ">= 2.4"
+  spec.required_ruby_version = ">= 2.7"
 
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir        = "exe"