xdg-output: bump output manager version to 2
#include <wlr/util/log.h>
#include "xdg-output-unstable-v1-protocol.h"
-#define OUTPUT_MANAGER_VERSION 1
+#define OUTPUT_MANAGER_VERSION 2
static void output_handle_destroy(struct wl_client *client,
struct wl_resource *resource) {
