Temporarily disable clippy on Rust 1.69

[micolous]

Clippy doesn't like clap's macro expansion on Rust 1.69: https://github.com/rust-lang/rust-clippy/issues/10421

So disable clippy on 1.69 for now.

• [x] cargo test has been run and passes
• [x] documentation has been updated with relevant examples (if relevant)