Add workflow to build binaries #7

Job	Run time
build-static (linux/arm64, arm64)	15s
build-static (linux/riscv64, riscv64)	21s
build-static (linux/ppc64le, ppc64le)	17s
build-static (linux/arm/v7, armv7)	14s
Ubuntu build	25s
build-static (linux/amd64, amd64)	11s
build-static (linux/386, x86)	14s
build-static (linux/s390x, s390x)	14s
	2m 11s

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