Update webmock dependency to version 1.12.0
Update webmock dependency to version 1.12.0

jasnow/follow-all,jasnow/follow-all,BryanH/follow-all,jasnow/follow-all,codeforamerica/follow-all,BryanH/follow-all,codeforamerica/follow-all,BryanH/follow-all,codeforamerica/follow-all