build(deps): bump vmm-sys-util from 0.6.1 to 0.7.0

Bumps [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) from 0.6.1 to 0.7.0.
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vmm-sys-util/compare/v0.6.1...v0.7.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Cargo.lock

@@ -1686,9 +1686,9 @@ dependencies = [
 
 [[package]]
 name = "vmm-sys-util"
-version = "0.6.1"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "183d25b56a61a6f518ef464ac578e790f04added34dfaab59a453d8a03cb7bd0"
+checksum = "d1cdd1d72e262bbfb014de65ada24c1ac50e10a2e3b1e8ec052df188c2ee5dfa"
 dependencies = [
  "bitflags 1.2.1",
  "libc",