Reverse dependencies for rickshaw

Latest version of the following gems require rickshaw

Gem	Version	Date	Downloads
boilerpipe-ruby +1.42 Million Downloads	`0.5.0` February 15, 2021	February 15, 2021	1.42 Million
zotplus-rakehelper +345 Thousand Downloads	`0.0.157` March 25, 2016	March 25, 2016	345 Thousand
jruby-boilerpipe +25.8 Thousand Downloads	`0.3.0` December 28, 2018	December 28, 2018	25.8 Thousand