chore: release v4.2.1

[sdd]

🤖 New release

• kiddo: 4.2.0 -> 4.2.1

Changelog

[4.2.1] - 2024-08-17

Chore

• Refactor trait bounds to silence new clippy lints
• Silence new lint error
• Silence error regarding doc_cfg no longer working
• Update codspeedhq/action action to v3

🐛 Bug Fixes

• Nearest_n_within does not limit num of items when not sorted, Issue:nearest_n_within does not limit the number of items when not sorted #168
• Update rust crate itertools to 0.13

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This PR was generated with release-plz.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.48%. Comparing base (5cc9696) to head (3a45c72).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #181      +/-   ##
==========================================
- Coverage   95.49%   95.48%   -0.02%     
==========================================
  Files          52       52              
  Lines        7528     7528              
  Branches     7528     7528              
==========================================
- Hits         7189     7188       -1     
- Misses        318      319       +1     
  Partials       21       21              

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