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:https://github.com/sdd/kiddo/issues/168 - Update rust crate itertools to 0.13

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This PR was generated with release-plz.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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

Additional details and impacted files

```diff @@ 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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