The vfio test requires nested-nested virtualization:
L0 Azure host
-> L1 Ubuntu VM
-> L2 Fedora VM
-> L3 Kata
This hits a kernel bug on v5.15 but works quite nicely on the v6.2 kernel
included in Ubuntu 23.04. We can switch back to Ubuntu 22.04 when they roll out
v6.2.
Fixes: #6555
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
(cherry picked from commit 936e8091a7)