fix(tests): add missing teamcity test dependency "joi" (#4772) r=vladikoff
fix(tests): add missing teamcity test dependency "joi" (#4772) r=vladikoff


shane-tomlinson/fxa-content-server,shane-tomlinson/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,shane-tomlinson/fxa-content-server,mozilla/fxa-content-server