chore(deps): update tunit packages to 1.56.0

Author: renovate[bot]

Directory.Packages.props

@@ -22,6 +22,6 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="5.3.0" />
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.7.0" />
     <PackageVersion Include="NetEvolve.Extensions.TUnit" Version="3.5.348" />
-    <PackageVersion Include="TUnit" Version="1.48.6" />
+    <PackageVersion Include="TUnit" Version="1.56.0" />
   </ItemGroup>
 </Project>