fix: clippy 1.92 unused_assignments

[vobradovich]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @vobradovich, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request performs a minor but important maintenance update to the codebase. It modifies the macro generation logic to use the #[allow(unused)] attribute instead of #[allow(unused_variables)]. This adjustment is necessary to align with a new lint introduced in Clippy 1.92, preventing warnings and keeping the generated code clean and up-to-date with current Rust best practices.

Highlights

• Clippy Lint Fix: Updated the #[allow(unused_variables)] attribute to the more general #[allow(unused)] in generated Rust code.
• Compatibility: This change addresses a new lint introduced in Clippy version 1.92, ensuring the codebase remains compatible with the latest linter rules.

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[gemini-code-assist]

Code Review

The pull request updates the generated Rust code by changing the #[allow(unused_variables)] attribute to the more general #[allow(unused)] within the topics and data methods of EthEvent implementations. This modification is applied in the generate_eth_event_impl macro and is reflected in several snapshot test files. No review comments were provided.