orderly-set 5.4.0 breaks deepdiff on Python 3.8

[mallman-experian]

Describe the bug

When we run our unit tests using deepdiff 8.4.2, it brings in orderly-set 5.4.0 and we see failure stack traces like

.venv/lib/python3.8/site-packages/deepdiff/__init__.py:10: in <module>
    from .diff import DeepDiff as DeepDiff
.venv/lib/python3.8/site-packages/deepdiff/diff.py:21: in <module>
    from deepdiff.helper import (strings, bytes_type, numbers, uuids, ListItemRemovedOrAdded, notpresent,
.venv/lib/python3.8/site-packages/deepdiff/helper.py:16: in <module>
    from orderly_set import StableSetEq as SetOrderedBase  # median: 1.0867 s for cache test, 5.63s for all tests
.venv/lib/python3.8/site-packages/orderly_set/__init__.py:1: in <module>
    from orderly_set.sets import OrderedSet, StableSet, StableSetEq, OrderlySet, SortedSet  # NOQA
.venv/lib/python3.8/site-packages/orderly_set/sets.py:50: in <module>
    class StableSet(MutableSet[T], Sequence[T]):
.venv/lib/python3.8/site-packages/orderly_set/sets.py:380: in StableSet
    def indexes(self, keys: list[Hashable]) -> list[int]:
E   TypeError: 'type' object is not subscriptable

This problem did not occur with the previous version of orderly-set, 5.3.2.

To Reproduce
Install and import deepdiff 8.4.2 using a fresh env (to get orderly-set 5.4.0).

Expected behavior

It doesn't break.

OS, DeepDiff version and Python version (please complete the following information):

• OS: Ubuntu
• Version ???
• Python Version 3.8.18
• DeepDiff Version 8.4.2

[noobie-bob]

FYI folks - seperman/orderly-set#11

[yossisolomon]

Same here, verified we have the same issue and pinning orderly-set to 5.3.2 fixes this on Python3.8