chore(deps): update dependency tunit to 1.17.20

Author: renovate[bot]

Directory.Packages.props

@@ -18,6 +18,6 @@
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.4.1" />
     <PackageVersion Include="NetEvolve.Arguments" Version="3.2.0" />
     <PackageVersion Include="NetEvolve.Extensions.TUnit" Version="3.5.3" />
-    <PackageVersion Include="TUnit" Version="1.17.11" />
+    <PackageVersion Include="TUnit" Version="1.17.20" />
   </ItemGroup>
 </Project>