Thank you @jb55@bitcoinhackers.org for the awk syntax

This reverts commit 502d166b.

Just grabbing the latest artifact for the branch does not work because
gitlab will only change the latest artifact when the whole pipeline
finishes

Too many changes in OpenAPI spec to describe each one, but
basically it is tag fixes, bringing consitency to operation summaries
and fixing some incorrect information.

So we don't accidentally run generic images on runners
that only can deal with specific images.

Add multiarch support to docker container, fixes pleroma-docker-compose#2

We really only want to strip location data anyway, and mogrify strips color profiles.

This is necessary since we bumped required version of elixir to 1.9.

The dlsym bug should be gone by now.