build(deps): bump rust-vmm-ci from ee6be8c to 99fe2eb

Bumps [rust-vmm-ci](https://github.com/rust-vmm/rust-vmm-ci) from `ee6be8c` to `99fe2eb`.
- [Release notes](https://github.com/rust-vmm/rust-vmm-ci/releases)
- [Commits](rust-vmm/rust-vmm-ci@ee6be8c...99fe2eb)

---
updated-dependencies:
- dependency-name: rust-vmm-ci
  dependency-type: direct:production
...

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

Author: dependabot[bot]