update build_darwin.sh

scripts/build.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+set -eu
+
+usage() {
+    echo "usage: $(basename $0) VERSION"
+    exit 1
+}
+
+[ "$#" -eq 1 ] || usage
+
+export VERSION="$1"
+
+# build universal MacOS binary
+sh $(dirname $0)/build_darwin.sh
+
+# # build arm64 and amd64 Linux binaries
+sh $(dirname $0)/build_linux.sh
+
+# # build arm64 and amd64 Docker images
+sh $(dirname $0)/build_docker.sh