Add New Labs Icon to NuGet Package Config

### Describe the bug

We should use the new Labs Icon https://github.com/CommunityToolkit/design-assets/pull/2 for our NuGet packages here.

### Steps to reproduce

```text
N/A
```

### Expected behavior

Packages have Labs icon

### Screenshots

_No response_

### Code Platform

- [ ] UWP
- [ ] WinAppSDK / WinUI 3
- [ ] Web Assembly (WASM)
- [ ] Android
- [ ] iOS
- [ ] MacOS
- [ ] Linux / GTK

### Windows Build Number

- [ ] Windows 10 1809 (Build 17763)
- [ ] Windows 10 1903 (Build 18362)
- [ ] Windows 10 1909 (Build 18363)
- [ ] Windows 10 2004 (Build 19041)
- [ ] Windows 10 20H2 (Build 19042)
- [ ] Windows 10 21H1 (Build 19043)
- [ ] Windows 11 21H2 (Build 22000)
- [ ] Other (specify)

### Other Windows Build number

_No response_

### App minimum and target SDK version

- [ ] Windows 10, version 1809 (Build 17763)
- [ ] Windows 10, version 1903 (Build 18362)
- [ ] Windows 10, version 1909 (Build 18363)
- [ ] Windows 10, version 2004 (Build 19041)
- [ ] Other (specify)

### Other SDK version

_No response_

### Visual Studio Version

_No response_

### Visual Studio Build Number

_No response_

### Device form factor

_No response_

### Additional context

_No response_

### Help us help you

Yes, but only if others can assist.

Commencez par localiser la configuration du package NuGet dans ce sous-module de tooling et examinez la pull request liée de design-assets pour le Labs Icon. Mettez à jour les métadonnées du package afin que les packages utilisent cette icône, puis vérifiez que les packages générés affichent le Labs Icon.

Rédigé par le modèle d'indexation à partir du texte de l'issue.