fix: weekly CI

[makeecat]

Summary

1. remove number_prefix from audit ignore
2. add rusttype to audit ignore
3. fix beta clippy issues in weekly CI

Testing

• just fmt
• just lint
• just test
• optional full just std-ci (if std/runtime paths are impacted)
• optional full just nostd-ci (if embedded/no_std paths are impacted)
• Other (please specify):

pro-tip: just with no parameters in the root defaults to just fmt, just lint, and just test.

Checklist

• I have updated docs or examples where needed
• I have added or updated tests where needed
• I have considered platform impact (Linux/macOS/Windows/embedded)
• I have considered config/logging changes (if applicable)
• This change is not a breaking change (or I documented it below)

Breaking changes (if any)

Additional context

[gbin]

Nice, thank you for pushing the Copper codebase into the future before it even happens :)