make sure we set seeds everywhere

              They don't look problematic! It looks like we don't set the seed where we probably ought to (before `generate()`ing bootstraps), though, which could be a TODO.

_Originally posted by @simonpcouch in https://github.com/tidymodels/tidymodels.org/pull/64#discussion_r1539838004_
            