Fix spec: update renamed RSpec class expectation
Fix spec: update renamed RSpec class expectation

appsignal/appsignal-ruby,appsignal/appsignal,appsignal/appsignal-ruby,appsignal/appsignal,matrinox/appsignal-ruby,matrinox/appsignal-ruby,appsignal/appsignal-ruby,appsignal/appsignal-ruby,matrinox/appsignal-ruby