arrow

ARROW-5043: [Release][Ruby] Fix dependency error in verification script

We ensure using red-arrow in the release archive.

Author: Kouhei Sutou <kou@clear-code.com>

Closes #4058 from kou/release-fix-ruby-test and squashes the following commits:

aa7e9256 <Kouhei Sutou>  Fix dependency error in verification script