Add vsBranch and ibcSourceBranch to PublishData.json (#33369)
Add vsBranch and ibcSourceBranch to PublishData.json (#33369)

`vsBranch` is the VS branch that the Roslyn branch inserts to
`ibcSourceBranch` is the Roslyn branch that produced IBC data that should be consumed by official build of the branch. If not specified it's the branch itself.
diryboy/roslyn,shyamnamboodiripad/roslyn,bartdesmet/roslyn,mavasani/roslyn,panopticoncentral/roslyn,VSadov/roslyn,AmadeusW/roslyn,nguerrera/roslyn,tmat/roslyn,physhi/roslyn,stephentoub/roslyn,eriawan/roslyn,AmadeusW/roslyn,physhi/roslyn,abock/roslyn,mgoertz-msft/roslyn,sharwell/roslyn,weltkante/roslyn,sharwell/roslyn,weltkante/roslyn,reaction1989/roslyn,VSadov/roslyn,jasonmalinowski/roslyn,davkean/roslyn,KevinRansom/roslyn,tannergooding/roslyn,KevinRansom/roslyn,panopticoncentral/roslyn,CyrusNajmabadi/roslyn,eriawan/roslyn,genlu/roslyn,stephentoub/roslyn,brettfo/roslyn,davkean/roslyn,AmadeusW/roslyn,eriawan/roslyn,aelij/roslyn,brettfo/roslyn,davkean/roslyn,weltkante/roslyn,agocke/roslyn,dotnet/roslyn,shyamnamboodiripad/roslyn,stephentoub/roslyn,KevinRansom/roslyn,bartdesmet/roslyn,CyrusNajmabadi/roslyn,KirillOsenkov/roslyn,jasonmalinowski/roslyn,KirillOsenkov/roslyn,MichalStrehovsky/roslyn,diryboy/roslyn,diryboy/roslyn,dotnet/roslyn,gafter/roslyn,CyrusNajmabadi/roslyn,wvdd007/roslyn,mgoertz-msft/roslyn,gafter/roslyn,abock/roslyn,swaroop-sridhar/roslyn,nguerrera/roslyn,genlu/roslyn,brettfo/roslyn,dotnet/roslyn,AlekseyTs/roslyn,jasonmalinowski/roslyn,ErikSchierboom/roslyn,heejaechang/roslyn,bartdesmet/roslyn,jmarolf/roslyn,tannergooding/roslyn,heejaechang/roslyn,ErikSchierboom/roslyn,gafter/roslyn,reaction1989/roslyn,ErikSchierboom/roslyn,genlu/roslyn,swaroop-sridhar/roslyn,aelij/roslyn,nguerrera/roslyn,mavasani/roslyn,abock/roslyn,reaction1989/roslyn,agocke/roslyn,AlekseyTs/roslyn,heejaechang/roslyn,agocke/roslyn,aelij/roslyn,mavasani/roslyn,tannergooding/roslyn,mgoertz-msft/roslyn,shyamnamboodiripad/roslyn,wvdd007/roslyn,MichalStrehovsky/roslyn,tmat/roslyn,panopticoncentral/roslyn,physhi/roslyn,KirillOsenkov/roslyn,AlekseyTs/roslyn,jmarolf/roslyn,sharwell/roslyn,VSadov/roslyn,wvdd007/roslyn,tmat/roslyn,jmarolf/roslyn,MichalStrehovsky/roslyn,swaroop-sridhar/roslyn