refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -7,13 +7,13 @@
     <PackageVersion Include="Argon" Version="0.25.0" />
     <PackageVersion Include="CommandLineParser" Version="2.9.1" />
     <PackageVersion Include="Microsoft.Build.Tasks.Core" Version="17.12.6" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageVersion Include="Polyfill" Version="7.4.1" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.144" />
     <PackageVersion Include="System.Memory" Version="4.6.0" />
     <PackageVersion Include="System.Net.Http" Version="4.3.4" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
-    <PackageVersion Include="Verify.XunitV3" Version="28.3.1" />
+    <PackageVersion Include="Verify.XunitV3" Version="28.3.2" />
     <PackageVersion Include="xunit.v3" Version="0.6.0-pre.7" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.0-pre.49" />
     <!-- explicit to avoid CVE -->