many changes, also Newtonsoft.Json 13.0.a → 13.0.b

server/ConfigureSwaggerOptions.cs

@@ -4,7 +4,7 @@ namespace Sockeye
     using Microsoft.AspNetCore.Mvc.ApiExplorer;
     using Microsoft.Extensions.DependencyInjection;
     using Microsoft.Extensions.Options;
-    using Microsoft.OpenApi.Models;
+    using Microsoft.OpenApi;
     using Swashbuckle.AspNetCore.SwaggerGen;
     using System;