- Bump version: 9.24.48 → 9.24.49

- Fixed test-image-vagrant
virtualbox-guest-tools obsoletes virtualbox-guest-x11

- ignore the type check on the Result class
With an update of mypy the bound TypeVar is no longer allowed.
In newer versions of python we could use the "Self" type or
import annotations from the future module. Unfortunately in
older python versions which we still support (3.6) there is
no non intrusive change which allows us to handle that type
annotation. Thus this commit ignores the return type spec
for Result.load() for the moment.

- Stop copying /dev files statically into the OCI container
In containers (nspawn) where part of the /dev filesystem is bind-mounted
from outside system, kiwi fails to do the rsync (in creation of the
nodes).
There is no reason to actually copy whole tree inside so let's just
not do it (as it does not seem to be needed at all).

- List riscv64 as a valid architecture in the schemas
This is needed so that architecture filters on riscv64 specifics can
be defined.

- Support DM integrity legacy options
Add a new attribute integrity_legacy_hmac="true|false" which
allows to use old flawed HMAC calculation (does not protect superblock).
Add a new attribute integrity_legacy_padding="true|false" which
allows to use inefficient legacy padding. Do not use these attributes