Update xunit-dotnet monorepo

Author: renovate[bot]

Directory.Packages.props

@@ -14,8 +14,8 @@
   <ItemGroup>
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageVersion Include="Moq" Version="4.20.70" />
-    <PackageVersion Include="xunit" Version="2.8.1" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.1"/>
+    <PackageVersion Include="xunit" Version="2.9.1" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2"/>
     <PackageVersion Include="coverlet.collector" Version="6.0.2"/>
   </ItemGroup>
 </Project>