Bump the xuint group with 2 updates (#94)

Author: dependabot[bot]

Tingle.AzdoCleaner.Tests/Tingle.AzdoCleaner.Tests.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="8.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="xunit" Version="2.6.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.4" PrivateAssets="All" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.5" PrivateAssets="All" />
     <PackageReference Include="coverlet.collector" Version="6.0.0" PrivateAssets="All" />
   </ItemGroup>