refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -11,7 +11,7 @@
     <PackageVersion Include="ProjectDefaults" Version="1.0.174" />
     <PackageVersion Include="SixLabors.ImageSharp" Version="4.0.0" />
     <PackageVersion Include="Verify" Version="31.20.0" />
-    <PackageVersion Include="Verify.DiffPlex" Version="3.2.0" />
+    <PackageVersion Include="Verify.DiffPlex" Version="3.3.0" />
     <PackageVersion Include="Verify.Nunit" Version="31.20.0" />
     <PackageVersion Include="Microsoft.Sbom.Targets" Version="4.1.5" />
     <PackageVersion Include="Argon" Version="0.34.0" />