Update testing packages to v2.1.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@vitest/coverage-v8 (source)	2.1.5 -> 2.1.6
vitest (source)	2.1.5 -> 2.1.6

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Release Notes

vitest-dev/vitest (@​vitest/coverage-v8)

### [`v2.1.6`](https://redirect.github.com/vitest-dev/vitest/releases/tag/v2.1.6) [Compare Source](https://redirect.github.com/vitest-dev/vitest/compare/v2.1.5...v2.1.6) #### 🚀 Features - Support VIte 6 #####     [View changes on GitHub](https://redirect.github.com/vitest-dev/vitest/compare/v2.1.5...v2.1.6)

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