refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -17,12 +17,12 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageVersion Include="NUnit" Version="4.2.2" />
     <PackageVersion Include="NUnit3TestAdapter" Version="4.6.0" />
-    <PackageVersion Include="Polyfill" Version="6.9.0" />
+    <PackageVersion Include="Polyfill" Version="6.10.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.135" />
     <PackageVersion Include="System.Data.SqlClient" Version="4.8.6" />
-    <PackageVersion Include="Verify" Version="26.5.0" />
+    <PackageVersion Include="Verify" Version="27.0.0-beta.5" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.0" />
-    <PackageVersion Include="Verify.NUnit" Version="26.5.0" />
+    <PackageVersion Include="Verify.NUnit" Version="27.0.0-beta.5" />
     <PackageVersion Include="Verify.SqlServer" Version="10.0.0" />
     <!-- explicit to avoid CVE -->
     <PackageVersion Include="System.Text.Json" Version="8.0.4" />