Use Sidekiq's super_fetch! method (#103)
Use Sidekiq's super_fetch! method (#103)

Sidekiq Pro introduces algorithms to work more reliably than the regular
version. Till now we use the one called `reliable_fetch!`. It's
deprecated and it will be removed in next major version and
`super_fetch!` is now recommended way.
travis-ci/travis-scheduler,travis-ci/travis-scheduler