Merge pull request moby#3627 from crazy-max/update-xx

Dockerfile: update xx to 1.2.1

Author: crazy-max

Dockerfile

@@ -32,7 +32,7 @@ FROM alpine:edge@sha256:c223f84e05c23c0571ce8decefef818864869187e1a3ea47719412e2
 FROM alpine-$TARGETARCH AS alpinebase
 
 # xx is a helper for cross-compilation
-FROM --platform=$BUILDPLATFORM tonistiigi/xx:1.1.2 AS xx
+FROM --platform=$BUILDPLATFORM tonistiigi/xx:1.2.1 AS xx
 
 # go base image
 FROM --platform=$BUILDPLATFORM golang:1.19-alpine${ALPINE_VERSION} AS golatest