chore(deps): update vitest to ^4.1.9

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@vitest/coverage-v8 (source)	^4.1.6 → ^4.1.9

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Release Notes

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

v4.1.8

Compare Source

   🐞 Bug Fixes

• browser:
  • Disable client cdp API when allowWrite/allowExec: false [backport to v4]  -  by @​hi-ogawa and Codex in #​10450 (e4067)
  • Remove orphaned Playwright route when same module is mocked via multiple ids [backport to v4]  -  by @​toxik and @​Zelys-DFKH in #​10474 (675b4)

    View changes on GitHub

v4.1.7

Compare Source

   🐞 Bug Fixes

• runner: Limit concurrency per task branch in addition to per leaf callbacks (backport)  -  by @​hi-ogawa in #​10384 (4f0f2)

    View changes on GitHub

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