Remove RUSTSEC-2021-0145 from ignored advisories

```
warning[advisory-not-detected]: advisory was not encountered
   ┌─ /Users/taiki/projects/sources/smilerobotics/openrr/.deny.toml:16:5
   │
16 │     "RUSTSEC-2021-0145", # atty 0.2, transitively dep of rosrust (via colored, colored-rs/colored#122)
   │     ^^^^^^^^^^^^^^^^^^^ no crate matched advisory criteria
```

.deny.toml

@@ -13,7 +13,6 @@ ignore = [
     "RUSTSEC-2022-0006", # thread_local 0.3, transitively dep of rosrust (via xml-rpc)
     "RUSTSEC-2022-0013", # regex 0.2, transitively dep of rosrust (via xml-rpc)
     "RUSTSEC-2022-0022", # hyper 0.10, transitively dep of rosrust (via xml-rpc)
-    "RUSTSEC-2021-0145", # atty 0.2, transitively dep of rosrust (via colored, https://github.com/mackwic/colored/pull/122)
 ]
 
 # https://embarkstudios.github.io/cargo-deny/checks/bans/cfg.html