build: Widen vmm-sys-util to v0.12.0-v0.14.0

[RuoqingHe]

Reason for This PR

vmm-sys-util is out of date, preventing downstream from bumping other rust-vmm crates.

License Acceptance

By submitting this pull request, I confirm that my contribution is made under
the terms of the Apache 2.0 license.

PR Checklist

[Author TODO: Meet these criteria.]
[Reviewer TODO: Verify that these criteria are met. Request changes if not]

• All commits in this PR are signed (git commit -s).
• The reason for this PR is clearly provided (issue no. or explanation).
• The description of changes is clear and encompassing.
• Any required documentation changes (code and docs) are included in this PR.
• Any newly added unsafe code is properly documented.
• Any user-facing changes are mentioned in CHANGELOG.md.

[RuoqingHe]

@roypat Please take a look when convenient 🙂

[roypat]

Heya, are there actually any users of this crate that would require this dependency bump and a new release? :o

[RuoqingHe]

Heya, are there actually any users of this crate that would require this dependency bump and a new release? :o

Yes, it's actually dragonball -> nydus -> fuse-backend-rs -> versionize, it's a lengthy chain

[roypat]

Heya, are there actually any users of this crate that would require this dependency bump and a new release? :o

Yes, it's actually dragonball -> nydus -> fuse-backend-rs -> versionize, it's a lengthy chain

blegh. Any chance fuse-backend-rs could just move to normal serde? I had a quick look at the code, and versionize is only used in two places, and neither of those actually make use of the versioning capabilities.

[RuoqingHe]

Heya, are there actually any users of this crate that would require this dependency bump and a new release? :o

Yes, it's actually dragonball -> nydus -> fuse-backend-rs -> versionize, it's a lengthy chain

blegh. Any chance fuse-backend-rs could just move to normal serde? I had a quick look at the code, and versionize is only used in two places, and neither of those actually make use of the versioning capabilities.

Noted, I will try it