For many journals and conferences there isn't even a way to submit the code or other digital artifacts with the PDF. A few have badging for whether digital artifacts are provided and whether the results have been reproduced or repeated by others - steps in the right direction at least.
As much as I intensely dislike their practices of overcharging for journals and milking digital library subscriptions to fund administrative overhead, the technical societies are technically non-profits and exist to serve their members and the research and professional community. This is really something they should be doing.
Why not to stuff it into a repo and reference it in the text?
Of course, a central location within a stable institution helps with continuity of availability of such repo. But at least this gives you some control over it.
This part really downplays the considerable resources (ie time contributed by unpaid volunteers) required to do artifact evaluation.