Update dependency Soenneker.Tests.Unit to 3.0.856

Author: renovate[bot]

test/Soenneker.Utils.BackgroundQueue.Tests/Soenneker.Utils.BackgroundQueue.Tests.csproj

@@ -28,7 +28,7 @@
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
-        <PackageReference Include="Soenneker.Tests.Unit" Version="3.0.855" />
+        <PackageReference Include="Soenneker.Tests.Unit" Version="3.0.856" />
     <PackageReference Include="xUnit.v3" Version="2.0.3" /></ItemGroup>
 
     <ItemGroup>