Docker 'latest' tagging for all CPU architectures

[Mister-X-]

Description

Building Aircrack-ng for that many architectures using Docker takes a long time, much longer than the 6 hours limit per job, and that it has to be broken down into several jobs to avoid failing.

The result is that some of the architectures are built much earlier, and the later ones are tagged as latest, I believe taking over the tag from the earlier built ones.

As an idea, we could maybe add another job, which depends upon completion of the others (which we can split even further), to load them all based on tag (which is easy as it's tagged by the short hashsum of the commit), tag them latest, then send them to dockerhub.

See also #2410