Confirm this can be deployed to the Heroku-20 stack

[aaronpk]

We need to upgrade this to the Heroku-20 stack, which has a different list of supported Ruby versions than the Heroku-16 stack.

https://devcenter.heroku.com/articles/heroku-20-stack

If anyone wants to try getting this running in a recent version of Ruby that would be much appreciated!

[jalcine]

Is this still a point of concern today? I mentioned something else in chat, but updating it to the now H22 stack might be worth looking into as part of such a bump.

(Originally published at: https://jacky.wtf/2022/7/Gnpb)