Bump WPF-UI from 3.0.0-preview.7 to 3.0.0-preview.8

Bumps [WPF-UI](https://github.com/lepoco/wpfui) from 3.0.0-preview.7 to 3.0.0-preview.8.
- [Release notes](https://github.com/lepoco/wpfui/releases)
- [Commits](https://github.com/lepoco/wpfui/commits)

---
updated-dependencies:
- dependency-name: WPF-UI
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

src/Portal/Sucrose.Portal/Sucrose.Portal.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
         <OutputType>WinExe</OutputType>
@@ -71,7 +71,7 @@
         <PackageReference Include="Skylark.Wing" Version="3.1.1.5" />
         <PackageReference Include="XamlFlair.WPF" Version="1.2.13" />
         <PackageReference Include="XamlAnimatedGif" Version="2.2.0" />
-        <PackageReference Include="WPF-UI" Version="3.0.0-preview.7" />
+        <PackageReference Include="WPF-UI" Version="3.0.0-preview.8" />
         <PackageReference Include="Skylark.Standard" Version="3.1.2" />
         <PackageReference Include="Skylark.Clipboard" Version="3.1.1.4" />
         <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />