update clippy linting

[danieleades]

this is stacked on #242

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.70%. Comparing base (8ca80dd) to head (e06183a).
⚠️ Report is 37 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #243      +/-   ##
==========================================
+ Coverage   78.60%   78.70%   +0.09%     
==========================================
  Files          18       18              
  Lines         589      587       -2     
==========================================
- Hits          463      462       -1     
+ Misses        126      125       -1     

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