update to https
update to https

Upgraded the key source to https communication.
SUNET/garethr-docker,HackerHappyHour/hackerhappyhour-docker,Tradeshift/garethr-docker,garethr/garethr-docker,garethr/garethr-docker,SUNET/garethr-docker,bmcbm/garethr-docker,Tradeshift/garethr-docker,Tradeshift/garethr-docker,bmcbm/garethr-docker,HackerHappyHour/hackerhappyhour-docker,garethr/garethr-docker,bmcbm/garethr-docker,SUNET/garethr-docker,HackerHappyHour/hackerhappyhour-docker