chore: release v2.1.1

[github-actions[bot]]

🤖 New release

• kiddo: 2.1.0 -> 2.1.1 (✓ API compatible changes)

Changelog

## [2.1.1] - 2023-06-07 ### Bug Fixes - Update rust crate serde_with to v3 ([id](id)) ### Documentation - Update rkyv-large example ([id](id)) - Minor documentation enhancements ([id](id)) - Fix serde example ([id](id)) ### Refactor - Float and fixed both use a common macro for best_n_within ([id](id)) - Float and fixed both use a common macro for within_unsorted ([id](id)) - Float and fixed both use a common macro for within ([id](id)) - Float and fixed both use a common macro for nearest_n ([id](id)) - Update `Axis` trait to include some methods so that the ([id](id)) ### Testing - Fix nearest_n bench code ([id](id)) ### Chore - Fix clippy lints ([id](id)) - Update rust crate criterion to 0.5 ([id](id)) - Add some missing docs and hide some private internals ([id](id)) ### Ci - Update git-cliff.toml ([id](id)) - Update git-cliff config path in release-plz.toml ([id](id)) - Add release-plz.toml and git-cliff.toml ([id](id)) - Fix pre-release ([id](id)) - Fix pre-release.yml ([id](id)) - Fix pre-release ([id](id)) - Fix pre-release ([id](id)) - Fix pre-release.yml ([id](id)) - Fix pre-release ([id](id)) - Add pre-release ([id](id)) - Add coverage checking ([id](id)) - Update CI workflow ([id](id))

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