add arm64 build

Author: Saman Tipputhynhean

makefile

@@ -77,8 +77,7 @@ dist-webui: build-webui
 docker: clean docker-hub
 
 docker-hub:
-	docker build --pull -t moov/ach:$(VERSION) -f Dockerfile .
-	docker tag moov/ach:$(VERSION) moov/ach:latest
+	docker buildx build --platform linux/amd64,linux/arm64 -t moov/ach:$(VERSION) -t moov/ach:latest -f Dockerfile .
 
 .PHONY: clean-integration test-integration