feat(core_promote): Mark old GCE images as deprecated.
feat(core_promote): Mark old GCE images as deprecated.

sigma/coreos-scripts,endocode/scripts,gtank/scripts,andrejro/coreos--scripts,mischief/scripts,BugRoger/scripts,mjg59/scripts,nicescale/scripts,mischief/scripts,zhang0137/scripts,endocode/scripts,sigma/coreos-scripts,endocode/scripts,andrejro/coreos--scripts,gtank/scripts,nicescale/scripts,marineam/coreos-scripts,vmware/coreos-scripts,zhang0137/scripts,gtank/scripts,smilart/scripts,andrejro/coreos--scripts,marineam/coreos-scripts,marineam/coreos-scripts,nicescale/scripts,smilart/scripts,fivethreeo/scripts,zhang0137/scripts,coreos/scripts,trnubo/scripts,glevand/coreos--scripts,vmware/coreos-scripts,vmware/coreos-scripts,mjg59/scripts,BugRoger/scripts,mischief/scripts,glevand/coreos--scripts,trnubo/scripts,fivethreeo/scripts,coreos/scripts,smilart/scripts,BugRoger/scripts,fivethreeo/scripts,mjg59/scripts,trnubo/scripts,sigma/coreos-scripts