use version @4 for download and upload artifact #518

Job	Run time
install-cross (linux-musl)	14s
macos (stable, x86_64-apple-darwin)	43s
macos (beta, x86_64-apple-darwin)	52s
linux (stable, arm-unknown-linux-gnueabi)	1m 4s
linux (stable, armv7-unknown-linux-gnueabihf)	1m 15s
linux (stable, i686-unknown-linux-musl)	1m 7s
linux (stable, x86_64-unknown-linux-musl)	1m 16s
linux (stable, aarch64-unknown-linux-gnu)	1m 5s
linux (stable, aarch64-unknown-linux-musl)	1m 16s
linux (stable, arm-unknown-linux-gnueabihf)	1m 4s
linux (beta, arm-unknown-linux-gnueabi)	1m 19s
linux (beta, armv7-unknown-linux-gnueabihf)	1m 14s
linux (beta, i686-unknown-linux-musl)	1m 14s
linux (beta, x86_64-unknown-linux-musl)	1m 26s
linux (beta, aarch64-unknown-linux-gnu)	1m 12s
linux (beta, aarch64-unknown-linux-musl)	1m 15s
linux (beta, arm-unknown-linux-gnueabihf)	1m 18s
	18m 54s

Provide feedback