chore(deps): update xunit-dotnet monorepo (#1760)

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

Author: renovate[bot]

Refit.Tests/Refit.Tests.csproj

@@ -21,8 +21,8 @@
   <ItemGroup>
     <PackageReference Include="coverlet.msbuild" Version="6.0.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
-    <PackageReference Include="xunit" Version="2.8.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.1" />
+    <PackageReference Include="xunit" Version="2.9.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
     <PackageReference Include="System.Reactive" Version="6.0.1" />
     <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="2.2.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.9.2" />