Removed warnings

Re-Genrated ClassTemplate.cs

Author: joadan

docs/Linq2GraphQL.Docs/Linq2GraphQL.Docs.csproj

@@ -11,6 +11,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
+		<PackageReference Include="System.Text.Json" Version="8.0.4" />
 		<PackageReference Include="BlazorMonaco" Version="3.2.0" />
 		<PackageReference Include="ColorCode.HTML" Version="2.0.15" />
 		<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.8" />