The gdb helper script wt_debug_script_update.py currently needs to modified by uncommenting the lines at the top of the file and then executed using `source wt_debug_script_update.py`.

We should update this script to define each of the functions in the file as a class extending gdb.Command. This will let us call the functions without needing to modify or reload the script, and once WT-9287 is merged they will be auto-loaded.
See dump_insert_list.py for an example usage of gdb.Command classes