Update order of Gem::Dependency requirements to match rubygems
Update order of Gem::Dependency requirements to match rubygems

The version of rubygems distributed with ruby 2.6.3 performs an internal sort on
the requirements list before returning it via `requirements_list`, which the
`Dependency` class uses here when we haven't already set it.

rubygems/rubygems.org,sonalkr132/rubygems.org,sonalkr132/rubygems.org,rubygems/rubygems.org,rubygems/rubygems.org,sonalkr132/rubygems.org,sonalkr132/rubygems.org,rubygems/rubygems.org