refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -4,7 +4,7 @@
     <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Argon" Version="0.33.3" />
+    <PackageVersion Include="Argon" Version="0.33.5" />
     <PackageVersion Include="EmptyFiles" Version="8.17.2" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0" />
     <PackageVersion Include="Microsoft.Sbom.Targets" Version="4.1.5" />
@@ -17,7 +17,7 @@
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageVersion Include="Verify.ImageMagick" Version="3.8.3" />
     <PackageVersion Include="Verify.WinForms" Version="4.0.0" />
-    <PackageVersion Include="Verify.Xunit" Version="31.12.0" />
+    <PackageVersion Include="Verify.Xunit" Version="31.12.3" />
     <PackageVersion Include="Xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
   </ItemGroup>