test_asyncio.test_waitfor: test_wait_for() failed with "AssertionError: 0.547 not less than 0.5" on GHA Windows x64

[vstinner]

GHA Windows x64:

FAIL: test_wait_for (test.test_asyncio.test_waitfor.AsyncioWaitForTest.test_wait_for)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\a\cpython\cpython\Lib\unittest\async_case.py", line 90, in _callTestMethod
    if self._callMaybeAsync(method) is not None:
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\a\cpython\cpython\Lib\unittest\async_case.py", line 112, in _callMaybeAsync
    return self._asyncioRunner.run(
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\a\cpython\cpython\Lib\asyncio\runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\a\cpython\cpython\Lib\asyncio\base_events.py", line 664, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "D:\a\cpython\cpython\Lib\test\test_asyncio\test_waitfor.py", line 147, in test_wait_for
    self.assertLess(t1 - t0, 0.5)
AssertionError: 0.5470000000000255 not less than 0.5

build: https://github.com/python/cpython/actions/runs/6299237551/job/17099620804?pr=109828

Linked PRs

• gh-109833: Fix asyncio test_wait_for() #109834
• [3.12] gh-109833: Fix asyncio test_wait_for() (GH-109834) #109837
• [3.11] gh-109833: Fix asyncio test_wait_for() (GH-109834) #109838