chore: update container images

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/ci.yaml

@@ -31,7 +31,7 @@ jobs:
     if: (!startsWith(github.head_ref, 'renovate/') && !startsWith(github.head_ref, 'dependabot/'))
     services:
       buildkitd:
-        image: moby/buildkit:v0.12.5
+        image: moby/buildkit:v0.13.1
         options: --privileged
         ports:
           - 1234:1234

Dockerfile

@@ -1,4 +1,4 @@
-# syntax = docker/dockerfile-upstream:1.6.0-labs
+# syntax = docker/dockerfile-upstream:1.7.0-labs
 
 # THIS FILE WAS AUTOMATICALLY GENERATED, PLEASE DO NOT EDIT.
 #
@@ -11,7 +11,7 @@ FROM ghcr.io/siderolabs/ca-certificates:v1.6.0 AS image-ca-certificates
 FROM ghcr.io/siderolabs/fhs:v1.6.0 AS image-fhs
 
 # runs markdownlint
-FROM docker.io/node:21.6.2-alpine3.19 AS lint-markdown
+FROM docker.io/node:21.7.1-alpine3.19 AS lint-markdown
 WORKDIR /src
 RUN npm i -g [email protected]
 RUN npm i [email protected]