chore: update container images

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

Dockerfile

@@ -1,4 +1,4 @@
-# syntax = docker/dockerfile-upstream:1.10.0-labs
+# syntax = docker/dockerfile-upstream:1.12.0-labs
 
 # THIS FILE WAS AUTOMATICALLY GENERATED, PLEASE DO NOT EDIT.
 #
@@ -11,7 +11,7 @@ FROM ghcr.io/siderolabs/ca-certificates:v1.8.0 AS image-ca-certificates
 FROM ghcr.io/siderolabs/fhs:v1.8.0 AS image-fhs
 
 # runs markdownlint
-FROM docker.io/oven/bun:1.1.29-alpine AS lint-markdown
+FROM docker.io/oven/bun:1.1.37-alpine AS lint-markdown
 WORKDIR /src
 RUN bun i [email protected] [email protected]
 COPY .markdownlint.json .