Bump xunit from 2.9.2 to 2.9.3 in /samples (#2432)

Author: dependabot[bot]

src/CommunityToolkit.Maui.Analyzers.UnitTests/CommunityToolkit.Maui.Analyzers.UnitTests.csproj

@@ -15,7 +15,7 @@
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Analyzer.Testing.XUnit" Version="1.1.2" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.CodeFix.Testing.XUnit" Version="1.1.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="xunit" Version="2.9.2" />
+    <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.0" PrivateAssets="All" />
     <PackageReference Include="coverlet.collector" Version="6.0.3" PrivateAssets="All" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.12.0" />