Merge pull request #1622 from dotnet/dependabot/nuget/Rx.NET/Source/Verify.Xunit-13.3.1

Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Tests.System.Reactive.ApiApprovals.csproj

@@ -26,7 +26,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
-    <PackageReference Include="Verify.Xunit" Version="11.24.0" />
+    <PackageReference Include="Verify.Xunit" Version="13.3.1" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
     <PackageReference Include="DiffPlex" Version="1.7.0" />