Moved the headless gem to the test group since EE installs gems from all groups except :test and :development by default
Moved the headless gem to the test group since EE installs gems from all groups except :test and :development by default

CivicCommons/CivicCommons,CivicCommons/CivicCommons,CivicCommons/CivicCommons,CivicCommons/CivicCommons