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?

從 Angular CLI 的 `test` 命令引數處理開始，並使用 Vitest 的 `--update` 旗標重現問題。追蹤記憶體中的 Vitest 設定是如何提供的，接著確認該旗標能傳遞給 Vitest，而不需要另外的設定檔；當可以透過 CLI 更新視覺回歸截圖和快照時，即表示完成。

由索引模型根據 Issue 內容生成。