Bump vitest from 3.2.4 to 3.2.6 in /are/simulation/gui/client

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 3.2.4 to 3.2.6.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Changelog](https://github.com/vitest-dev/vitest/blob/main/docs/releases.md)
- [Commits](https://github.com/vitest-dev/vitest/commits/v3.2.6/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 3.2.6
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]