Remove or replace json-sempai dependency

[calina-c]

json-sempai -> we can possibly change this dependency, find something similar

I recently started getting messages that this will be deprecated soon (by python 3.12?). It suggested a replacement package, but I forget which. I recommend that we create a separate github issue to switch dependency from this package to the recommended replacement.

Therefore my suggestion is: keep gently nudging at this to nurture it along.

Originally posted by @trentmc in #1203 (comment)