Fix rails gem dependency
Fix rails gem dependency

codefarmdev/haystack,stijnster/appsignal-ruby,appsignal/appsignal-ruby,matrinox/appsignal-ruby,appsignal/appsignal,subvisual/appsignal,rranelli/appsignal,q-m/appsignal,stijnster/appsignal-ruby,appsignal/appsignal-ruby,stijnster/appsignal-ruby,matrinox/appsignal-ruby,matrinox/appsignal-ruby,appsignal/appsignal-ruby,appsignal/appsignal,appsignal/appsignal-ruby