style: warn and fix more clippy lints

[paolobarbolini]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 74.85%. Comparing base (cc4f137) to head (e47a78d).
Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
src/actions/delete_objects.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #128   +/-   ##
=======================================
  Coverage   74.85%   74.85%           
=======================================
  Files          30       30           
  Lines         704      704           
=======================================
  Hits          527      527           
  Misses        177      177           

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