Reverse dependencies for rickshaw

Latest version of the following gems require rickshaw

Gem	Version	Date	Downloads
boilerpipe-ruby +1.41 Million Downloads	`0.5.0` February 15, 2021	February 15, 2021	1.41 Million
zotplus-rakehelper +344 Thousand Downloads	`0.0.157` March 25, 2016	March 25, 2016	344 Thousand
jruby-boilerpipe +25.8 Thousand Downloads	`0.3.0` December 28, 2018	December 28, 2018	25.8 Thousand