build(deps): bump tonistiigi/xx from 1.2.1 to 1.6.1

Bumps tonistiigi/xx from 1.2.1 to 1.6.1.

---
updated-dependencies:
- dependency-name: tonistiigi/xx
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Dockerfile

@@ -1,6 +1,6 @@
 ARG BASE_IMAGE=alpine
 
-FROM --platform=$BUILDPLATFORM tonistiigi/xx:1.2.1@sha256:8879a398dedf0aadaacfbd332b29ff2f84bc39ae6d4e9c0a1109db27ac5ba012 AS xx
+FROM --platform=$BUILDPLATFORM tonistiigi/xx:1.6.1@sha256:923441d7c25f1e2eb5789f82d987693c47b8ed987c4ab3b075d6ed2b5d6779a3 AS xx
 
 FROM --platform=$BUILDPLATFORM golang:1.20.4-alpine3.16 AS builder