Drop support for Ruby 2.1 and 2.2
Drop support for Ruby 2.1 and 2.2

https://www.ruby-lang.org/en/news/2017/04/01/support-of-ruby-2-1-has-ended/
https://www.ruby-lang.org/en/news/2018/06/20/support-of-ruby-2-2-has-ended/

stympy/faker,Dakurei/faker,irfanah/faker,irfanah/faker,irfanah/faker