chore(deps): update dependency verify.nunit to 31.9.4

Author: renovate-bot

src/ARI.Tests/ARI.Tests.csproj

@@ -69,7 +69,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Verify.NUnit" Version="31.9.3" />
+    <PackageReference Include="Verify.NUnit" Version="31.9.4" />
     <PackageReference Include="Devlead.Testing.MockHttp" Version="2025.12.16.528" />
     <PackageReference Include="Cake.Testing" Version="6.0.0" />
     <PackageReference Include="NSubstitute" Version="5.3.0" />