We can have those in existing verify jobs configs, and that'd break
stuff. So, even while the "bad" commit got released only recently
with `2.1.6-1` (14 April 2022), we still need to cope with those that
used it, and using some serde parser magic to transform on read only
is hard here due to section config (json-value and verify currently
happen before we can do anything about it)
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>