Handle H1 Collaboration on platforms statistics

[JoshuaMart]

When updating Hackerone statistics, currently the collaborative reports are not managed and are natively tagged at false.
It would be necessary to submit 1 or more reports in collaboration to have a data set to make this update.

See : https://github.com/EasyRecon/Hunt3r/blob/master/backend/app/controllers/admin/platformstats_controller.rb#L81

  ...
  currency: 'USD',
  collab: false
}