[feat] remove deprecated #[clap] attribute

[greged93]

I noticed a lot of the binaries use one of the deprecated #[clap(…)] attribute for parsing of the arguments. The latest documentation barely refers to it and it seems to have been deprecated since version 4.x of clap in favour of #[arg(…)] or #[command(…)].

I’d be willing to submit a PR if this feature is accepted.