[CI] Bundle mutex_m on Ruby >= 3.4

amatsuda · amatsuda · commit 60d8bc33b552 · 2025-04-29T19:38:28.000+09:00
diff --git a/Gemfile b/Gemfile
@@ -44,3 +44,4 @@ gem 'loofah', RUBY_VERSION < '2.5' ? '< 2.21.0' : '>= 0'
 gem 'selenium-webdriver'
 gem 'net-smtp' if RUBY_VERSION >= '3.1'
 gem 'bigdecimal' if RUBY_VERSION >= '3.4'
+gem 'mutex_m' if RUBY_VERSION >= '3.4'
