chore: bump virtio-queue, vhost-user-backend and virtio-vscok

[uran0sH]

Summary of the PR

virtio-queue v0.15 introduces a new Descriptor API supporting both
split and packed virtqueue.
Update our dependencies and code to work with the new version
of the crate, including updating vhost-user-backend and virtio-vsock.

Updates vhost-user-backend from 0.18.0 to 0.19.0

• Release notes
• Commits

Updates virtio-queue from 0.14.0 to 0.15.0

• Release notes
• Commits

Updates virtio-vsock from 0.8.0 to 0.9.0

• Release notes
• Commits

Requirements

Before submitting your PR, please make sure you addressed the following
requirements:

• All commits in this PR have Signed-Off-By trailers (with
  git commit -s), and the commit message has max 60 characters for the
  summary and max 75 characters for each description line.
• All added/changed functionality has a corresponding unit/integration
  test.
• All added/changed public-facing functionality has entries in the "Upcoming
  Release" section of CHANGELOG.md (if no such section exists, please create one).
• Any newly added unsafe code is properly documented.

[uran0sH]

@stefano-garzarella Hi, I have replaced the descriptor api for all vhost-devices. We might publish the new version of vm-virtio now.

[stefano-garzarella]

@uran0sH LGTM, but please explain better in the commit description/PR what is changed and why we need it. Commit message are really important.

[stefano-garzarella]

@stefano-garzarella Hi, I have replaced the descriptor api for all vhost-devices. We might publish the new version of vm-virtio now.

yeah, do you want to prepare a vm-virtio release?

[stefano-garzarella]

@uran0sH now we published the new crates, can you update deps? (maybe you can just include in this PR the commit in #845 ).

[uran0sH]

@uran0sH now we published the new crates, can you update deps? (maybe you can just include in this PR the commit in #845 ).

done

[stefano-garzarella]

@uran0sH change looks good to me, but please write a better commit message and also update the PR title/description mentioning the new version, and the main changes.

Something like this:

chore: bump virtio-queue to v0.15

virtio-queue v0.15 introduces a new Descriptor API supporting both
split and packed virtqueue.
Update our dependencies and code to work with the new version of
the crate, including updating vhost-user-backend v0.19.

[uran0sH]

@uran0sH change looks good to me, but please write a better commit message and also update the PR title/description mentioning the new version, and the main changes.

Something like this:

chore: bump virtio-queue to v0.15

virtio-queue v0.15 introduces a new Descriptor API supporting both
split and packed virtqueue.
Update our dependencies and code to work with the new version of
the crate, including updating vhost-user-backend v0.19.

I have modified it. Could you review it again?

[stefano-garzarella]

@uran0sH LGTM, thanks!

[stefano-garzarella]

@epilys @stsquad @vireshk can you take a look?