Don't use cookies on the proxy, just pass through the cookie header (#1494)

Co-authored-by: chris van de steeg <chris@careconnections.nl>

src/Microsoft.Tye.Hosting/HttpProxyService.cs

@@ -43,7 +43,8 @@ namespace Microsoft.Tye.Hosting
             {
                 AllowAutoRedirect = false,
                 AutomaticDecompression = DecompressionMethods.None,
-                UseProxy = false
+                UseProxy = false,
+                UseCookies = false,
             }));
 
             foreach (var service in application.Services.Values)