Update CI config

Author: rmosolgo

.github/workflows/ci.yaml

@@ -53,7 +53,7 @@ jobs:
             ruby: 3.3
             graphql_reject_numbers_followed_by_names: 1
           - gemfile: gemfiles/rails_8.1.gemfile
-            ruby: 3.5
+            ruby: 4.0
             graphql_reject_numbers_followed_by_names: 1
             redis: 1
           - gemfile: gemfiles/rails_master.gemfile

Gemfile

@@ -13,6 +13,10 @@ if RUBY_VERSION >= "3.0"
   gem "evt"
 end
 
+if RUBY_VERSION >= "3.1.0"
+  gem "minitest-mock"
+end
+
 if RUBY_VERSION >= "3.2.0"
   gem "async", "~>2.0"
 end

graphql.gemspec

@@ -37,7 +37,6 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency "minitest"
   s.add_development_dependency "minitest-focus"
-  s.add_development_dependency "minitest-mock"
   s.add_development_dependency "minitest-reporters"
   s.add_development_dependency "ostruct"
   s.add_development_dependency "rake"