context_menu.lua: enable runtime script-opt updates

Fixes #17726.

Author: guidocella

player/lua/context_menu.lua

@@ -683,4 +683,4 @@ mp.register_script_message("select", function ()
     end
 end)
 
-require "mp.options".read_options(options)
+require "mp.options".read_options(options, nil, function () end)