Ensuring service scope provider is registered from the correct scope

Author: fabiocav

src/WebJobs.Script.WebHost/DependencyInjection/JobHostServiceProvider.cs

@@ -64,6 +64,7 @@ private Container BuildContainer(IServiceCollection descriptors)
 
             container.Populate(descriptors);
             container.UseInstance<IServiceProvider>(this);
+            container.UseInstance<IServiceScopeFactory>(this);
             container.UseInstance<JobHostServiceProvider>(this);
 
             return container;