gh-153903: Use @ctypes.util.wrap_dll_function() with pythonapi

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Use the @ctypes.util.wrap_dll_function() decorator with ctypes.pythonapi to wrap Python C API functions in the test suite.

• Issue: Annotation-based decorator for ctypes function pointers #153903

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cc @ZeroIntensity

[ZeroIntensity]

The readability improvement is really nice

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The readability improvement is really nice

Readability is nice, but my first motivation is correctness. The new syntax reduces the risk of typo when declaring a ctypes function.

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Tests / Windows / Build and test (x64, switch-case) (pull_request)Failing after 21m

Ah, test_logging failed. I just re-ran the job.

FAIL: test_rollover_at_midnight (test.test_logging.TimedRotatingFileHandlerTest.test_rollover_at_midnight)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\a\cpython\cpython\Lib\test\test_logging.py", line 6749, in test_rollover_at_midnight
    self.assertIn(f'testing2 {i}', line)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 'testing2 0' not found in '2026-07-19 11:25:12,102 testing1 0\n'