The toolchain is x86_64 only, which trips up xcodebuild if Rosetta2
is not installed: https://github.com/swiftlang/swift-build/issues/836
We don't have any CI configurations that build QNX on macOS, so we
don't need to install it.
Pick-to: 6.10 6.8 6.5
Change-Id: I8714438c6373e613f28f67b48d2f4f78a723bc9d
Reviewed-by: Jukka Jokiniva <jukka.jokiniva@qt.io>
Reviewed-by: Marianne Yrjänä <marianne.yrjana@qt.io>
ed82b7ec6f