[RubygemsIntegration] Also pass in a hash of specs by name when replacing entrypoints
[RubygemsIntegration] Also pass in a hash of specs by name when replacing entrypoints

This should improve performance slightly and make the code a bit more readable

dilumnavanjana/bundler,dilumnavanjana/bundler,mvz/bundler,bundler/bundler,mvz/bundler,bundler/bundler