Co-authored-by: fisker <lionkay@gmail.com>

This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [prettier](https://prettier.io) ([source](https://github.com/prettier/prettier)) | [`3.8.5` → `3.9.4`](https://renovatebot.com/diffs/npm/prettier/3.8.5/3.9.4) | ![age](https://developer.mend.io/api/mc/badges/age/npm/prettier/3.9.4?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/prettier/3.8.5/3.9.4?slim=true) |

---

### Release Notes

<details>
<summary>prettier/prettier (prettier)</summary>

### [`v3.9.4`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#394)

[Compare Source](prettier/prettier@3.9.3...3.9.4)

[diff](prettier/prettier@3.9.3...3.9.4)

##### Angular: Format `@content(name)` -> `@content (name)` to align with other block syntax ([#&#8203;19499](prettier/prettier#19499) by [@&#8203;fisker](https://github.com/fisker))

<!-- prettier-ignore -->

```html
<!-- Input -->
<FancyButton [label]="title">
  @&#8203;content (icon) {
    <span>Icon!</span>
  }
  @&#8203;content (description) {
    <span>Description text</span>
  }
  <span>Other children</span>
</FancyButton>

<!-- Prettier 3.9.3 -->
<FancyButton [label]="title">
  @&#8203;content(icon) {
    <span>Icon!</span>
  }
  @&#8203;content(description) {
    <span>Description text</span>
  }
  <span>Other children</span>
</FancyButton>

<!-- Prettier 3.9.4 -->
<FancyButton [label]="title">
  @&#8203;content (icon) {
    <span>Icon!</span>
  }
  @&#8203;content (description) {
    <span>Description text</span>
  }
  <span>Other children</span>
</FancyButton>
```

### [`v3.9.3`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#393)

[Compare Source](prettier/prettier@3.9.2...3.9.3)

[diff](prettier/prettier@3.9.1...3.9.3)

##### Markdown: Fix unexpected removal of characters in liquid syntax ([#&#8203;19489](prettier/prettier#19489) by [@&#8203;seiyab](https://github.com/seiyab))

<!-- prettier-ignore -->

```md
// Input
<!-- Input -->
{{ page.title
}} text

<!-- Prettier 3.9.1 -->
{{ page.title
 text

<!-- Prettier 3.9.3 -->
{{ page.title
}} text
```

##### TypeScript: Allow decorators to be used with declare on class fields ([#&#8203;19492](prettier/prettier#19492) by [@&#8203;evoactivity](https://github.com/evoactivity))

Extensively used within the Ember ecosystem, decorators with `declare` on class fields will ignore the babel parser error and allow Prettier to format the code without breaking it.

<!-- prettier-ignore -->

```ts
// Input
export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
  @&#8203;service declare server: ServerService;
}

// Prettier 3.9.1
// SyntaxError: Decorators can't be used with a declare field. (2:3)
//  1 | export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
//> 2 |   @&#8203;service declare server: ServerService;
//    |   ^
//  3 | }

// Prettier 3.9.3
export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
  @&#8203;service declare server: ServerService;
}
```

### [`v3.9.2`](prettier/prettier@3.9.1...3.9.2)

[Compare Source](prettier/prettier@3.9.1...3.9.2)

### [`v3.9.1`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#391)

[Compare Source](prettier/prettier@3.9.0...3.9.1)

[diff](prettier/prettier@3.9.0...3.9.1)

##### CLI: Fix ignored file has been cached incorrectly ([#&#8203;19483](prettier/prettier#19483) by [@&#8203;kovsu](https://github.com/kovsu))

Bug details [#&#8203;18016](prettier/prettier#18016)

### [`v3.9.0`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#390)

[Compare Source](prettier/prettier@3.8.5...3.9.0)

[diff](prettier/prettier@3.8.5...3.9.0)

🔗 [Release Notes](https://prettier.io/blog/2026/06/27/3.9.0)

</details>

---

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Reviewed-on: https://git.3caravelle.net/3Caravelle/renovate/pulls/42
Co-authored-by: Renovate Bot <renovate-bot@3caravelle.com>
Co-committed-by: Renovate Bot <renovate-bot@3caravelle.com>