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.

Beginne damit, die NuGet-Paketkonfiguration in diesem Tooling-Submodul zu finden, und prüfe den verknüpften Pull Request zu den Design-Assets für das Labs Icon. Aktualisiere die Paketmetadaten so, dass die Pakete dieses Icon verwenden, und überprüfe anschließend, ob die resultierenden Pakete das Labs Icon anzeigen.

Vom Indexierungsmodell aus dem Issue-Text verfasst.