refs or cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -7,7 +7,7 @@
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0-beta.2" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageVersion Include="Polyfill" Version="8.7.4" />
+    <PackageVersion Include="Polyfill" Version="8.8.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.157" />
     <PackageVersion Include="Verify" Version="30.7.2" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />