Upgrade test library to address import error
Upgrade test library to address import error

Referenced in the issue here:
https://github.com/FactoryBoy/factory_boy/issues/334

Version 2.8.1 of the factory-boy library contains an update to
reference the new Faker library name.

crunchr/silk,jazzband/silk,jazzband/silk,crunchr/silk,mtford90/silk,jazzband/silk,mtford90/silk,crunchr/silk,django-silk/silk,mtford90/silk,crunchr/silk,django-silk/silk,django-silk/silk,django-silk/silk,mtford90/silk,jazzband/silk