In Sisyphus, by default we switch to a kernel with flavor equal to
the major version of the kernel.
Switching the latest flavour every two months is problematic, so
we will temporarily disable this functionality.

Link: https://lore.altlinux.org/sisyphus/0ee447d2-93d0-4644-bfd6-94bba43a1c9e@ya.ru/T/#t