Random timing related test failure on windows

Observed in CI on windows 10

______________________________ test_adjust_timer ______________________________
[gw0] win32 -- Python 3.10.6 C:\hostedtoolcache\windows\Python\3.10.6\x64\python.exe

tektronix_dpo = <TektronixDPO7000xx: dpo>

    def test_adjust_timer(tektronix_dpo):
        """
        After adjusting the type of the measurement or the source of the
        measurement, we need wait at least 0.1 seconds
        ('minimum_adjustment_time') before a measurement value can be
        retrieved. Test this.
        """
    
        timer = timeit.Timer(
            'tektronix_dpo.measurement[0].source1("CH1"),'
            'tektronix_dpo.measurement[0].amplitude()',
            globals=locals(),
        )
        min_time = tektronix_dpo.measurement[0]._minimum_adjustment_time
        repeats = timer.repeat(repeat=10, number=1)
    
        # The minimum time should be at least 95% of the 'minimum_adjustment_time'
>       assert all(t > min_time * 0.95 for t in repeats)
E       assert False
E        +  where False = all(<generator object test_adjust_timer.<locals>.<genexpr> at 0x00000221557F5CB0>)

Start with the failing test_adjust_timer test and its use of timeit.Timer, _minimum_adjustment_time, and the TektronixDPO measurement fixture. Reproduce the failure on Windows CI and inspect the timing assumptions around this test. Done means the test no longer fails intermittently on Windows while still checking the minimum adjustment time.