arrow

ARROW-14637: [GLib][Ruby] Add support for initializing S3 APIs explicitly

Ruby API: Arrow.s3_initialize(log_level: :trace)

Closes #11647 from kou/glib-s3-initialize

Authored-by: Sutou Kouhei <kou@clear-code.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>