chore(deps): update vitest monorepo to v2.1.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@vitest/coverage-istanbul (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-istanbul)

v2.1.6

Compare Source

🚀 Features

• Support Vite 6

    View changes on GitHub

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Configuration

📅 Schedule: Branch creation - "before 9am on the first day of the month" in timezone Europe/Prague, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

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• If you want to rebase/retry this PR, check this box

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