Fix clippy issues (#681)
# Objective
Fix the clippy errors in the CI
# Solution
- Run `cargo +stable clippy --workspace --no-deps --all-features
--all-targets --fix -- -D warnings` multiple times
- Add `#[allow(clippy::large_stack_arrays)]`
https://github.com/valence-rs/valence/blob/8f3f84d557dacddd7faddb2ad724185ecee2e482/crates/valence_generated/build/block.rs#L695
- Replace every triple slash comment in `valence_generated` and
`valence_entity` with `#[doc]`
- Replace eliding `'a` lifetimes in `stresser.rs` with a single `'_`
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