Merged requested to merge add-allegro-to-ci into master
I finally got the Allegro Express Docker image built (had some technical issues related to it being 32-bit only that were only recently resolved).
Some TODOs before this is ready for merging:
Make sure tests actually pass.
Confirm with Franz that they're happy with the image. I reached out to them before doing it to explain my plans and got their approval, but I think it'll be nice to just touch bases again.
Confirm that using it for ASDF CI purposes is fine with the Express license. My read is that it's fine so long as the ASDF development is non-commercial. But I'll leave that decision up to @rgoldman.