Fix benchmark black_box usage

[RAprogramm]

Summary

• switch the error path benchmarks to std::hint::black_box to silence the Criterion deprecation warning
• bump the crate version to 0.24.5, document the change in the changelog, and refresh the README dependency snippet

Testing

• cargo +nightly fmt --
• cargo +1.90.0 clippy -- -D warnings
• cargo +1.90.0 build --all-targets
• cargo +1.90.0 test --all
• cargo +1.90.0 doc --no-deps
• cargo audit
• cargo deny check

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https://chatgpt.com/codex/tasks/task_e_68d7c5a98c18832bb2643129e65e1ae5