This migration is supposed to be backported to v50 and thus needs a v50
migration ID.  Since v51.2024-08-27T00:00:00 was already applied to dev
instances, we set `preConditions[].onFail = "MARK_RAN"`, so that if the
table is already present, the backdated migration does not fail.  See
the discussion on PR #47419 for more details.

This will not need an (automatic) backport, since I will include it in
PR #47419.

Fixes: 592360c9
References: https://github.com/metabase/metabase/pull/47419#discussion_r1738929516