[masakari] DB migration failure during upgrade to 2024.1

Hey folks,

Just wanted to let you know, that upgrade of Masakari to 2024.1 is most likely borked due to issue in Alembic migration, where masakari considers taskflow DB as its own, as masakari-manage does not pass correct namespace for alembic. Upgrade path is not tested in CI, which made it possible to slip the issue from the radar.

There's a patch existing [1] that fixes the root cause of the issue, though needs to be reviewed and backported. Thus, I wanted to call out Masakari Maintainers for some attention to this issue as well as give operators some awareness about the issue.

[1] https://review.opendev.org/c/openstack/masakari/+/920034