Update NuGet packages

src/PicView.Avalonia/PicView.Avalonia.csproj

@@ -108,7 +108,7 @@
     <PackageReference Include="Avalonia.ReactiveUI" Version="11.3.0-beta2" />
     <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
     <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.3.0-beta2" />
-    <PackageReference Include="Avalonia.Svg.Skia" Version="11.2.0.2" />
+    <PackageReference Include="Avalonia.Svg.Skia" Version="11.2.7.1" />
   </ItemGroup>
 
   <ItemGroup>

src/PicView.Tests/PicView.Tests.csproj

@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Avalonia.Headless.XUnit" Version="11.2.5" />
+    <PackageReference Include="Avalonia.Headless.XUnit" Version="11.2.7" />
     <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="xunit" Version="2.9.3" />