[ruby/stringio] Fix Ruby 3.4 check
https://github.com/ruby/stringio/commit/a27c5d5e2e
Co-authored-by: Sutou Kouhei [email protected]
[ruby/stringio] Fix Ruby 3.4 check
https://github.com/ruby/stringio/commit/a27c5d5e2e
Co-authored-by: Sutou Kouhei [email protected]