Update setup-zig action #479

Job	Run time
build-linux-glibc-arm	1m 39s
build-linux-glibc	46s
build-linux-musl	4m 9s
build-linux-glibc-arm64	3m 29s
build-linux-musl-arm	1m 13s
build-linux-musl-arm64	1m 23s
build-macos-x64	2m 20s
build-windows	1m 51s
build-macos-arm64	1m 51s
pack	23s
build-test-binaries	1m 5s
run-test-binaries-cross-plat (x64)	1m 17s
run-test-binaries-cross-plat (arm)	52s
run-test-binaries-os-versions (centos:7)	9s
run-test-binaries-cross-plat (arm64)	28s
run-test-binaries-os-versions (debian:10)	28s
	23m 23s

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