Make tests compatible with pytest v8.x

[carlsmedstad]

Hey 👋 Arch Linux maintainer here.

The test test_get_valid_history_without_current fails when using pytest v8.x in the following manner:

======================================================== short test summary info =========================================================
FAILED tests/test_utils.py::TestGetValidHistoryWithoutCurrent::test_get_valid_history_without_current[le cat-result0] - AssertionError: assert ['ls cat', 'diff x'] == ['ls cat', 'diff x', 'café ô']
FAILED tests/test_utils.py::TestGetValidHistoryWithoutCurrent::test_get_valid_history_without_current[diff x-result1] - AssertionError: assert ['ls cat'] == ['ls cat', 'café ô']
FAILED tests/test_utils.py::TestGetValidHistoryWithoutCurrent::test_get_valid_history_without_current[fuck-result2] - AssertionError: assert ['ls cat', 'diff x'] == ['ls cat', 'diff x', 'café ô']
FAILED tests/test_utils.py::TestGetValidHistoryWithoutCurrent::test_get_valid_history_without_current[cafe \xf4-result3] - AssertionError: assert ['ls cat', 'diff x'] == ['ls cat', 'diff x', 'café ô']
======================================== 4 failed, 1793 passed, 62 skipped, 273 warnings in 4.04s ========================================

The issue stems from the function thefuck/utils.py:get_all_executables() and seems to be related to the memoization decorator used.

Disable memoization for the failing tests with the fixture no_meomize to resolve the issue.

[principis]

Thanks! Shamelessly backporting for Fedora 😄