Add sdk rollforward policy in global.json (#39428)
Add sdk rollforward policy in global.json (#39428)


ViktorHofer/corefx,wtgodbe/corefx,ericstj/corefx,ViktorHofer/corefx,BrennanConroy/corefx,ericstj/corefx,wtgodbe/corefx,shimingsg/corefx,ericstj/corefx,wtgodbe/corefx,shimingsg/corefx,ericstj/corefx,shimingsg/corefx,shimingsg/corefx,ViktorHofer/corefx,ViktorHofer/corefx,shimingsg/corefx,BrennanConroy/corefx,ericstj/corefx,shimingsg/corefx,BrennanConroy/corefx,wtgodbe/corefx,wtgodbe/corefx,wtgodbe/corefx,shimingsg/corefx,ericstj/corefx,ViktorHofer/corefx,wtgodbe/corefx,ViktorHofer/corefx,ViktorHofer/corefx,ericstj/corefx