fix(hosting): clear KnownIPNetworks

Clear KnownIPNetworks when configuring forwarded headers so the app doesn't retain default/trusted IP networks; aligns with KnownProxies clearing and addresses forwarded-headers compatibility.

Author: winromulus

src/ES.FX.Ignite/Hosting/IgniteHostingExtensions.cs

@@ -35,6 +35,7 @@ private static void AddAspNetServices(IHostApplicationBuilder builder, AspNetCor
                 options.ForwardedHeaders = ForwardedHeaders.All;
                 options.ForwardLimit = null;
                 options.KnownProxies.Clear();
+                options.KnownIPNetworks.Clear();
             });
 
         if (settings.AddEndpointsApiExplorer)