refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -10,8 +10,8 @@
     <PackageVersion Include="Fody" Version="6.8.1" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="27.0.2" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
-    <PackageVersion Include="Polyfill" Version="6.1.1" />
-    <PackageVersion Include="ProjectDefaults" Version="1.0.133" />
+    <PackageVersion Include="Polyfill" Version="6.2.0" />
+    <PackageVersion Include="ProjectDefaults" Version="1.0.134" />
     <PackageVersion Include="Resourcer.Fody" Version="1.8.1" />
     <PackageVersion Include="Serilog" Version="4.0.1" />
     <PackageVersion Include="Serilog.Sinks.File" Version="6.0.0" />