Enable `clippy::useless_conversion` (#8767)

This PR enables the
[`clippy::useless_conversion`](https://rust-lang.github.io/rust-clippy/master/index.html#/useless_conversion)
rule and fixes the outstanding violations.

Release Notes:

- N/A
fe04f69cafMarshall Bowers committed on 3/3/2024, 3:22:55 PM· committed by GitHubparent20d1333
30 files changedLine totals unavailable