Bump SwiftArgumentParser checkout to 1.0.3.
Bump SwiftArgumentParser checkout to 1.0.3.

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