logger has been extracted to a bundled gem since Ruby 3.4

amatsuda · amatsuda · commit 307d3c65126f · 2024-09-03T02:08:03.000+09:00
diff --git a/Gemfile b/Gemfile
@@ -29,3 +29,4 @@ group :development do
 end
 
 gem "base64" if RUBY_VERSION >= "3.3"
+gem "logger" if RUBY_VERSION >= "3.4"
