Bump Verify.NUnit from 23.2.2 to 23.2.3 in /src (#366)

Author: dependabot[bot]

src/Tests/Tests.csproj

@@ -11,7 +11,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="Verify.DiffPlex" Version="2.3.0" />
     <PackageReference Include="Verify.ImageMagick" Version="3.3.0" />
-    <PackageReference Include="Verify.NUnit" Version="23.2.2" />
+    <PackageReference Include="Verify.NUnit" Version="23.2.3" />
     <ProjectReference Include="..\Verify.DocNet\Verify.DocNet.csproj" />
     <PackageReference Include="ProjectDefaults" Version="1.0.125" PrivateAssets="all" />