refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -8,7 +8,7 @@
     <PackageVersion Include="EmptyFiles" Version="8.18.1" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.3.0" />
     <PackageVersion Include="Microsoft.Sbom.Targets" Version="4.1.5" />
-    <PackageVersion Include="Polyfill" Version="10.7.1" />
+    <PackageVersion Include="Polyfill" Version="10.8.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.174" />
     <PackageVersion Include="Serilog" Version="4.3.1" />
     <PackageVersion Include="Serilog.Sinks.File" Version="7.0.0" />