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Un-graceful termination on Windows #344

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@abel1502

With Python 3.14 on Windows, hitting Ctrl+C causes immediate termination (regardless of --graceful-timeout with the following traceback:

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "[redacted]\.venv\Scripts\hypercorn.exe\__main__.py", line 10, in <module>
    sys.exit(main())
             ~~~~^^
  File "[redacted]\.venv\Lib\site-packages\hypercorn\__main__.py", line 312, in main
    return run(config)
  File "[redacted]\Lib\site-packages\hypercorn\run.py", line 96, in run
    wait(process.sentinel for process in processes)
    ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "[redacted]\AppData\Local\Python\pythoncore-3.14-64\Lib\multiprocessing\connection.py", line 1113, in wait
    ready_handles = _exhaustive_wait(waithandle_to_obj.keys(), timeout)
  File "[redacted]\AppData\Local\Python\pythoncore-3.14-64\Lib\multiprocessing\connection.py", line 1045, in _exhaustive_wait
    res = _winapi.WaitForMultipleObjects(short_L, False, timeout)
InterruptedError: [Errno 4] Interrupted function call

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