Docker 23.0 uses buildx as the default cli tool for building images.
When `DOCKER_BUILDKIT` is set, docker build fails with the error:

> BuildKit is enabled but the buildx component is missing or broken.

Fix this by installing `docker-cli-buildx`

ARCH -> DOCKER_ARCH

See merge request !4

This reverts commit d4274b79.

See merge request !3

ci: include template for gitlab-ci

See merge request !2

Initial implemention of a docker-cli container

See merge request !1

With docker manifest you can create a single image that supports
multiple architectures.