chore: upgrade of xunit verify

Author: baywet

test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="System.Text.Json" Version="9.0.10" />
-    <PackageReference Include="Verify.Xunit" Version="31.0.1" />
+    <PackageReference Include="Verify.Xunit" Version="31.12.5" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />