Update ruby versions in travis config file
Update ruby versions in travis config file

davydovanton/sidekiq-statistic,davydovanton/sidekiq-statistic,davydovanton/sidekiq-history,business-of-fashion/sidekiq-statistic,business-of-fashion/sidekiq-statistic,davydovanton/sidekiq-statistic,davydovanton/sidekiq-history