river-status: correctly advertise version 4

This should have been a compile error but slipped through due to a bug
in zig-wayland. This bug has now been fixed and the submodule updated.

river/StatusManager.zig

@@ -39,7 +39,7 @@ server_destroy: wl.Listener(*wl.Server) = wl.Listener(*wl.Server).init(handleSer
 
 pub fn init(self: *Self) !void {
     self.* = .{
-        .global = try wl.Global.create(server.wl_server, zriver.StatusManagerV1, 3, ?*anyopaque, null, bind),
+        .global = try wl.Global.create(server.wl_server, zriver.StatusManagerV1, 4, ?*anyopaque, null, bind),
     };
 
     server.wl_server.addDestroyListener(&self.server_destroy);