Updating XAMLTest to latest (#3300)

Author: Keboo

Directory.packages.props

@@ -13,7 +13,7 @@
     <PackageVersion Include="Microsoft.Composition" Version="1.0.31" />
     <PackageVersion Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageVersion Include="Microsoft.NETCore.Platforms" Version="7.0.4" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.7.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.7.1" />
     <PackageVersion Include="Microsoft.Toolkit.MVVM" Version="7.1.2" />
     <PackageVersion Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.39" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
@@ -22,7 +22,7 @@
     <PackageVersion Include="ShowMeTheXAML.AvalonEdit" Version="2.0.0" />
     <PackageVersion Include="ShowMeTheXAML.MSBuild" Version="2.0.0" />
     <PackageVersion Include="VirtualizingWrapPanel" Version="1.5.7" />
-    <PackageVersion Include="XAMLTest" Version="1.0.0-ci451" />
+    <PackageVersion Include="XAMLTest" Version="1.1.0" />
     <PackageVersion Include="xunit" Version="2.5.0" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.5.0" />
     <PackageVersion Include="Xunit.StaFact" Version="1.1.11" />