docker-buildx: update to 0.12.0.

srcpkgs/docker-buildx/template

@@ -1,6 +1,6 @@
 # Template file for 'docker-buildx'
 pkgname=docker-buildx
-version=0.11.2
+version=0.12.0
 revision=1
 build_style=go
 go_import_path="github.com/docker/buildx"
@@ -12,7 +12,7 @@ maintainer="Daniel Lewan <daniel@teddydd.me>"
 license="Apache-2.0"
 homepage="https://docs.docker.com/buildx/working-with-buildx/"
 distfiles="https://github.com/docker/buildx/archive/refs/tags/v${version}.tar.gz"
-checksum=371eb742213ed580179fc4fdfd9a197f0e3115e91979b7907828427d578d49e5
+checksum=7d00cc435b5ea8d180c0deda30e46ae2bca81d630629ad3c370a70448995ea5a
 
 post_install() {
 	vmkdir usr/libexec/docker/cli-plugins