Update dependency zwitterion to v0.28.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
zwitterion	dependencies	minor	0.27.3 -> 0.28.1	source

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Release Notes

lastmjs/zwitterion

### [`v0.28.1`](https://renovatebot.com/gh/lastmjs/zwitterion/releases/v0.28.1) [Compare Source](https://renovatebot.com/gh/lastmjs/zwitterion/compare/v0.28.0...v0.28.1) ##### Bug Fixes - **deps:** pin dependencies ([2ac5131](https://renovatebot.com/gh/lastmjs/zwitterion/commit/2ac5131)) ### [`v0.28.0`](https://renovatebot.com/gh/lastmjs/zwitterion/releases/v0.28.0) [Compare Source](https://renovatebot.com/gh/lastmjs/zwitterion/compare/v0.27.3...v0.28.0) ##### Bug Fixes - **deps:** update dependency ws to v5.2.2 ([1dae957](https://renovatebot.com/gh/lastmjs/zwitterion/commit/1dae957)) ##### Features - **dynamic-import:** add dynamic import syntax to babel ([23f06d4](https://renovatebot.com/gh/lastmjs/zwitterion/commit/23f06d4))

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