missing nonintel docker providing machine

` There are no nodes with the label 'ci.role.test&&sw.os.linux&&hw.arch.aarch64&&sw.tool.docker'` when attemted to run external tests out of intel.

Please put the name of the software product (and affected platforms if relevant) in the title of this issue: docker on non intels, namely on aarch64

When one want to run external tests - or anything else rwquiring docker - they are moreover limited to linux intel. At least aarch64 linuxes, should be also prosion-able

It wouldbe nice, if those new installs would already provide podman out of the box, with just docker wrapper.

Start by locating the repository's machine provisioning configuration and the existing Intel Linux Docker setup. Check how aarch64 nodes are defined and how Docker or a Podman-compatible wrapper would be installed. Done means aarch64 Linux machines can run external Docker tests and provide the requested container tooling.

Written by the indexing model from the issue text.