refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -4,7 +4,7 @@
     <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.1.0" />
+    <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.2.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
     <PackageVersion Include="NUnit" Version="4.5.1" />
     <PackageVersion Include="NUnit3TestAdapter" Version="6.2.0" />
@@ -16,14 +16,14 @@
     <PackageVersion Include="System.Memory" Version="4.6.3" />
     <PackageVersion Include="System.Buffers" Version="4.6.1" />
     <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
-    <PackageVersion Include="Verify" Version="31.15.0" />
+    <PackageVersion Include="Verify" Version="31.16.0" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
-    <PackageVersion Include="Verify.NUnit" Version="31.15.0" />
+    <PackageVersion Include="Verify.NUnit" Version="31.16.0" />
     <PackageVersion Include="Microsoft.Sbom.Targets" Version="4.1.5" />
     <PackageVersion Include="Argon" Version="0.33.5" />
     <PackageVersion Include="DocumentFormat.OpenXml" Version="3.5.1" />
     <PackageVersion Include="DiffEngine" Version="19.1.2" />
-    <PackageVersion Include="EmptyFiles" Version="8.17.2" />
+    <PackageVersion Include="EmptyFiles" Version="8.18.0" />
     <PackageVersion Include="SimpleInfoName" Version="3.2.0" />
   </ItemGroup>
 </Project>