refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -14,12 +14,12 @@
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0-beta.7" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.0" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <PackageVersion Include="Microsoft.Sbom.Targets" Version="4.1.3" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.162" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageVersion Include="Verify.Http" Version="7.4.0" />
-    <PackageVersion Include="Verify.XunitV3" Version="31.5.3" />
+    <PackageVersion Include="Verify.XunitV3" Version="31.6.0" />
     <PackageVersion Include="xunit.v3" Version="3.2.0" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
   </ItemGroup>