Add darwin/arm64 to build

Author: liggitt

Makefile

@@ -12,8 +12,10 @@ build-release: check_go_version
 	mkdir -p ./bin/darwin/amd64
 	mkdir -p ./bin/linux/amd64
 	GOOS=darwin GOARCH=amd64 go build -trimpath -o ./bin/darwin/amd64/kubectl-check-ownerreferences $(shell ./build/print-ldflags.sh) ./
+	GOOS=darwin GOARCH=arm64 go build -trimpath -o ./bin/darwin/arm64/kubectl-check-ownerreferences $(shell ./build/print-ldflags.sh) ./
 	GOOS=linux  GOARCH=amd64 go build -trimpath -o ./bin/linux/amd64/kubectl-check-ownerreferences  $(shell ./build/print-ldflags.sh) ./
 	tar -cvzf ./bin/kubectl-check-ownerreferences-darwin-amd64.tar.gz LICENSE -C ./bin/darwin/amd64 kubectl-check-ownerreferences
+	tar -cvzf ./bin/kubectl-check-ownerreferences-darwin-arm64.tar.gz LICENSE -C ./bin/darwin/arm64 kubectl-check-ownerreferences
 	tar -cvzf ./bin/kubectl-check-ownerreferences-linux-amd64.tar.gz  LICENSE -C ./bin/linux/amd64  kubectl-check-ownerreferences
 
 install: check_go_version