Need that test SDK.

Author: Wood, Roger C

QueryBuilder.Tests/QueryBuilder.Tests.csproj

@@ -7,6 +7,7 @@
     <RootNamespace>SqlKata.Tests</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.0" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
   </ItemGroup>