build(deps-dev): bump the vitest group in /ui with 3 updates

Bumps the vitest group in /ui with 3 updates: [@vitest/browser](https://github.com/vitest-dev/vitest/tree/HEAD/packages/browser), [@vitest/coverage-v8](https://github.com/vitest-dev/vitest/tree/HEAD/packages/coverage-v8) and [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `@vitest/browser` from 3.2.4 to 4.0.18
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.18/packages/browser)

Updates `@vitest/coverage-v8` from 3.2.4 to 4.0.18
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.18/packages/coverage-v8)

Updates `vitest` from 3.2.4 to 4.0.18
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.18/packages/vitest)

---
updated-dependencies:
- dependency-name: "@vitest/browser"
  dependency-version: 4.0.18
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vitest
- dependency-name: "@vitest/coverage-v8"
  dependency-version: 4.0.18
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vitest
- dependency-name: vitest
  dependency-version: 4.0.18
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vitest
...

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Author: dependabot[bot]