fix specs with appraisal
fix specs with appraisal

it was using the default Gemfile no matter what

Change-Id: I237f1ec703e132d04ba5ea96a1e43cf6fecba37f
Reviewed-on: https://gerrit.instructure.com/69448
Reviewed-by: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
Tested-by: Jenkins
Product-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>
QA-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>

instructure/switchman,instructure/switchman