deny: update cargo to get rid of yanked crate libc v0.2.154

error[yanked]: detected yanked crate (try `cargo update -p libc`)
   ┌─ /work/github/expressvpn/lightway/Cargo.lock:94:1
   │
94 │ libc 0.2.154 registry+https://github.com/rust-lang/crates.io-index
   │ ------------------------------------------------------------------ yanked version
   │
   = libc v0.2.154
     ├── backtrace v0.3.71