Update the RSpec dependency to the version that introduced expect().to().
Update the RSpec dependency to the version that introduced expect().to().

fhernandez173/thor,sideci-sample/sideci-sample-thor,groovenauts/thor,b-dean/thor,doudou/thor,segiddins/thor,flyinbutrs/thor,linkodehub/thor,fancyremarker/thor,b-dean/thor,r7kamura/thor,erikhuda/thor,segiddins/thor,linkodehub/thor,r7kamura/thor,groovenauts/thor,fancyremarker/thor,fhernandez173/thor,sideci-sample/sideci-sample-thor,flyinbutrs/thor