Dockerfile: update to xx 1.2.1

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

Author: crazy-max

Dockerfile

@@ -3,7 +3,7 @@
 ARG BASE_VARIANT=alpine
 ARG GO_VERSION=1.20.5
 ARG ALPINE_VERSION=3.17
-ARG XX_VERSION=1.1.1
+ARG XX_VERSION=1.2.1
 ARG GOVERSIONINFO_VERSION=v1.3.0
 ARG GOTESTSUM_VERSION=v1.10.0
 ARG BUILDX_VERSION=0.11.0