Allow to pass --update to vitest

### Command

test

### Description

Vitest has an update command, that updates the visual regression screenshots and the snapshots. However, it is currently impossible to invoke this command, because the Angular CLI does not seem to pass it on to vitest. Just running `vitest --update` fails as well, because it is missing the vitest.config that Angular CLI seems to create in memory.

### Describe the solution you'd like

Pass the `--update` flag vitest execution.

### Describe alternatives you've considered

Maybe all arguments preceded by `--` could be automatically passed on?

从 Angular CLI 的 `test` 命令的参数处理入手，并使用 Vitest 的 `--update` 标志复现该问题。跟踪内存中的 Vitest 配置是如何提供的，然后验证该标志能够传递给 Vitest，而无需单独的配置文件；当可以通过 CLI 更新视觉回归截图和快照时，即表示完成。

由索引模型根据 Issue 内容生成。