Code doesn't run on all supported Python versions that DR supports

[codemann8]

C:\Programs\ALttPDoorRandomizer-DoorDevMuffins>py --version
Python 3.8.10

C:\Programs\ALttPDoorRandomizer-DoorDevMuffins>CustomizerGUI.py
Traceback (most recent call last):
  File "C:\Programs\ALttPDoorRandomizer-DoorDevMuffins\CustomizerGUI.py", line 7, in <module>
    from source.gui.customizer.Doors.overview import door_customizer_page
  File "C:\Programs\ALttPDoorRandomizer-DoorDevMuffins\source\gui\customizer\Doors\overview.py", line 11, in <module>
    from source.gui.customizer.doors_data import (
  File "C:\Programs\ALttPDoorRandomizer-DoorDevMuffins\source\gui\customizer\doors_data.py", line 1328, in <module>
    mandatory_tiles: dict[World, list[tuple[int, int]]] = {
TypeError: 'type' object is not subscriptable