Instant dep is unmaintained

[nstinus]

Partial output of a cargo deny check advisories

90 │ instant 0.1.13 registry+https://github.com/rust-lang/crates.io-index
   │ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ unmaintained advisory detected                       
   │                                      
   ├ ID: RUSTSEC-2024-0384               
   ├ Advisory: https://rustsec.org/advisories/RUSTSEC-2024-0384
   ├ This crate is no longer maintained, and the author recommends using the maintained [`web-time`] crate instead.
                                                                                                                               
     [`web-time`]: https://crates.io/crates/web-time
   ├ Solution: No safe upgrade is available!      
   ├ instant v0.1.13                         
     └── backoff v0.4.0