build(deps): update vmm-sys-util requirement

Updates the requirements on [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) to permit the latest version.

Updates `vmm-sys-util` to 0.14.0
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/main/CHANGELOG.md)
- [Commits](rust-vmm/vmm-sys-util@v0.14.0...v0.14.0)

---
updated-dependencies:
- dependency-name: vmm-sys-util
  dependency-version: 0.14.0
  dependency-type: direct:production
  dependency-group: rust-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.toml

@@ -8,4 +8,4 @@ members = [
 ]
 
 [workspace.dependencies]
-vmm-sys-util = "0.14.0"
+vmm-sys-util = "0.15.0"