feat: remove deprecated #[clap] attribute

[crStiv]

Motivation

This PR addresses issue #1298 by updating the deprecated #[clap(...)] attributes to their modern equivalents in clap 4.x. The current codebase uses outdated clap attribute syntax which has been deprecated since version 4.0. This change will help maintain code quality and prevent potential issues in future updates.

Fixes #1298

Solution

Updated all instances of deprecated clap attributes across 8 files:

• Replaced #[clap(...)] with #[command(...)] for struct/enum level attributes
• Replaced #[clap(...)] with #[arg(...)] for field level attributes
• Updated flatten and subcommand attributes to use #[command(...)]

Files modified:

1. crates/prover/scripts/build_compress_vks.rs
2. crates/prover/scripts/build_groth16_bn254.rs
3. crates/prover/scripts/build_plonk_bn254.rs
4. crates/prover/scripts/post_trusted_setup.rs
5. crates/cli/src/bin/cargo-prove.rs
6. crates/cli/src/commands/build.rs
7. crates/cli/src/commands/vkey.rs
8. crates/build/src/lib.rs

These changes maintain the same functionality while using the current recommended syntax from the clap crate.

PR Checklist

• Added Tests
  • No new tests needed as this is a syntax update only
• Added Documentation
  • No documentation changes needed as this is a syntax update only
• Breaking changes
  • No breaking changes: the functionality remains the same