refs or cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -18,7 +18,7 @@
     <PackageVersion Include="NServiceBus.Attachments.Sql.Raw" Version="15.1.0" />
     <PackageVersion Include="NServiceBus.Newtonsoft.Json" Version="4.0.1" />
     <PackageVersion Include="NServiceBus.Transport.SqlServer" Version="8.1.7" />
-    <PackageVersion Include="Polyfill" Version="7.19.0" />
+    <PackageVersion Include="Polyfill" Version="7.20.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.147" />
     <PackageVersion Include="Verify.SqlServer" Version="11.0.1" />
     <PackageVersion Include="Verify.XunitV3" Version="28.13.0" />