Update dependency Microsoft.NET.Test.Sdk to 17.13.0

Author: renovate[bot]

Lombiq.HelpfulLibraries.Tests/Lombiq.HelpfulLibraries.Tests.csproj

@@ -17,7 +17,7 @@
   </Target>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="xunit.v3" Version="1.0.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.1">
       <PrivateAssets>all</PrivateAssets>