Bump rust-vmm-ci from c3ef897 to aa2f8a9

Bumps [rust-vmm-ci](https://github.com/rust-vmm/rust-vmm-ci) from `c3ef897` to `aa2f8a9`.
- [Commits](rust-vmm/rust-vmm-ci@c3ef897...aa2f8a9)

---
updated-dependencies:
- dependency-name: rust-vmm-ci
  dependency-version: aa2f8a90e46533de8a58f19cd0c417de856d4437
  dependency-type: direct:production
...

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

Author: dependabot[bot]