build(deps): update dependency communitytoolkit.mvvm to 8.4.2

Author: renovate[bot]

SnapX.Avalonia/SnapX.Avalonia.csproj

@@ -54,7 +54,7 @@
     <PackageReference Include="Avalonia.Markup.Xaml.Loader" Version="$(AvaloniaVersion)" />
     <PackageReference Include="FluentAvaloniaUI" Version="2.5.0" />
     <PackageReference Include="FluentIcons.Avalonia.Fluent" Version="2.0.321" />
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.1" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.2" />
     <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="$(AvaloniaVersion)" />
     <PackageReference Include="HarfBuzzSharp" Version="$(HarfBuzzSharpVersion)" />
     <PackageReference Include="HarfBuzzSharp.NativeAssets.Linux" Version="$(HarfBuzzSharpVersion)" />