Merge pull request #518 from mganss/dependabot/nuget/xunit.runner.visualstudio-2.5.6

Bump xunit.runner.visualstudio from 2.5.5 to 2.5.6

Author: mganss

test/HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj

@@ -31,7 +31,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.5">
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>