forked from loafle/openapi-generator-original
* update ZenTest
ZenTest 4.11.1 requires rubygems 2.x.
But Ruby 2.6.0 include rubygems 3.x.
So we can't use ruby client in Ruby 2.6.0.
https://www.ruby-lang.org/en/news/2018/12/25/ruby-2-6-0-released/
ZenTest 4.11.2 removed rubygems dependency so we should update.
1883b210aa
* update ruby client sample