Reorder filters to ensure that :authority is available when the auth filter needs it

src/core/surface/secure_channel_create.c

@@ -88,8 +88,8 @@ static void on_secure_transport_setup_done(void *arg,
         c->args.channel_args, secure_endpoint, c->args.metadata_context, 1);
     grpc_chttp2_transport_start_reading(c->result->transport, NULL, 0);
     c->result->filters = gpr_malloc(sizeof(grpc_channel_filter *) * 2);
-    c->result->filters[0] = &grpc_client_auth_filter;
-    c->result->filters[1] = &grpc_http_client_filter;
+    c->result->filters[0] = &grpc_http_client_filter;
+    c->result->filters[1] = &grpc_client_auth_filter;
     c->result->num_filters = 2;
   }
   notify = c->notify;