Bump `cargo-vet` to 0.9

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (e2a75df) 40.97% compared to head (d27bbff) 40.97%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #436 +/- ## ======================================= Coverage 40.97% 40.97% ======================================= Files 34 34 Lines 3143 3143 ======================================= Hits 1288 1288 Misses 1855 1855 ```

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