Update ghc-major-version field
Update ghc-major-version field

creichert/stackage,clinty/stackage,Daniel-Diaz/stackage,asr/stackage,athanclark/stackage,mgajda/stackage,iand675/stackage,massysett/stackage,mstksg/stackage,spencerjanssen/stackage,mrkkrp/stackage,fimad/stackage,michalkonecny/stackage,Shimuuar/stackage,peti/stackage,stackbuilders/stackage,simonmichael/stackage,fpco/stackage,ethercrow/stackage,soenkehahn/stackage,jonschoning/stackage,int-index/stackage,wereHamster/stackage