Add support for Swift 5.6 branch
Add support for Swift 5.6 branch

apple/swift,benlangmuir/swift,glessard/swift,apple/swift,glessard/swift,atrick/swift,apple/swift,rudkx/swift,JGiola/swift,atrick/swift,roambotics/swift,apple/swift,ahoppen/swift,gregomni/swift,roambotics/swift,benlangmuir/swift,roambotics/swift,gregomni/swift,atrick/swift,ahoppen/swift,ahoppen/swift,ahoppen/swift,benlangmuir/swift,atrick/swift,rudkx/swift,atrick/swift,rudkx/swift,glessard/swift,benlangmuir/swift,roambotics/swift,ahoppen/swift,ahoppen/swift,JGiola/swift,rudkx/swift,JGiola/swift,JGiola/swift,gregomni/swift,rudkx/swift,apple/swift,glessard/swift,rudkx/swift,benlangmuir/swift,JGiola/swift,atrick/swift,gregomni/swift,benlangmuir/swift,roambotics/swift,glessard/swift,JGiola/swift,glessard/swift,roambotics/swift,gregomni/swift,gregomni/swift,apple/swift