[deps] Billing: Update xunit.runner.visualstudio to v3 (#5742)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

test/Core.IntegrationTest/Core.IntegrationTest.csproj

@@ -15,7 +15,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="Rnwood.SmtpServer" Version="3.1.0-ci0868" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" />
   </ItemGroup>
 
   <ItemGroup>