Non-bundled tools should be installed for testing

[ronaldtse]

For every tool profile in the register, we should have a per-tool local YAML file that allows the GitHub Actions cron job to automatically install them in the runner, and test the tool (instead of "not installed").

This YAML file needs to be cross-platform, e.g. for "convert" and "magick":

packages:
  chocolatey: 
    - ImageMagick
  homebrew:
    - imagemagick
  macports:
    - ImageMagick
  apt:
    - imagemagick

Or should we include this in the tool profile itself? Maybe it's easier that way? But then it would be more than just for CI purpose and we need to track other things, which is annoying.

Let's just keep it separate from the tool profile.