`test_ctypes` failing on main

[tomasr8]

test_ctypes seems to be failing consistently on the recent PRs:

• https://github.com/python/cpython/actions/runs/29683928642/job/88184883827?pr=154104
• https://github.com/python/cpython/actions/runs/29683745397/job/88184404311?pr=154100

FAIL: test_string_annotations (test.test_ctypes.test_structures.StructureTestCase.test_string_annotations)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/runner/work/cpython/cpython-ro-srcdir/Lib/test/test_ctypes/test_structures.py", line 962, in test_string_annotations
    self.assertEqual(Point._fields_, fields)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [('x', <class 'ctypes.c_int'>), ('y', <class 'ctypes.c_int'>)] != [['x', <class 'ctypes.c_int'>], ['y', <class 'ctypes.c_int'>]]

First differing element 0:
('x', <class 'ctypes.c_int'>)
['x', <class 'ctypes.c_int'>]

- [('x', <class 'ctypes.c_int'>), ('y', <class 'ctypes.c_int'>)]
?  ^                           ^  ^                           -

+ [['x', <class 'ctypes.c_int'>], ['y', <class 'ctypes.c_int'>]]
?  ^                           ^  ^                            +

cc @vstinner I think you added that test case?

[ZeroIntensity]

#154091 should have fixed it.

[tomasr8]

Great, thanks!

[vstinner]

Sorry for the noise :-(

#154091 should have fixed it.

Correct, this PR fixed the issue.