Fix gbdkjs compile error
@@ -27,7 +27,7 @@ extern UBYTE script_ptr_bank;
extern UBYTE *script_start_ptr;
extern UBYTE script_cmd_args[6];
extern UBYTE script_cmd_args_len;
-extern SCRIPT_CMD script_cmds[];
+extern const SCRIPT_CMD script_cmds[];
extern UBYTE *script_ptr;
extern UWORD script_ptr_x;
extern UWORD script_ptr_y;
