Estimate phase delay (TimeoutError) failure running with the pysmurf controller

Seems like there's more EPICS timeout errors with all smurfs running in parallel. We've seen this twice in a row when trying to estimate phase delay on one slot while the other 5 are running their setup procedures.

2022-09-06T14:59:11+0000 Traceback (most recent call last):
  File "/readout-script-dev/jlashner/penn-latr/enable_optical_amps.py", line 22, in <module>

2022-09-06T14:59:11+0000     S.estimate_phase_delay(b)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/pub.py", line 50, in wrapper

2022-09-06T14:59:11+0000     rv = func(S, *args, **kwargs)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/smurf_util.py", line 292, in estimate_phase_delay

2022-09-06T14:59:11+0000     save_data=save_data, n_scan=n_scan)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/pub.py", line 50, in wrapper

2022-09-06T14:59:11+0000     rv = func(S, *args, **kwargs)
  File "/usr/local/src/pysmurf/python/pysmurf/client/tune/smurf_tune.py", line 645, in full_band_resp

2022-09-06T14:59:11+0000     adc_is_saturated = self.check_adc_saturation(band)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/pub.py", line 50, in wrapper
    rv = func(S, *args, **kwargs)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/smurf_util.py", line 1489, in check_adc_saturation

2022-09-06T14:59:11+0000     save_data=False, show_plot=False, save_plot=False)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/pub.py", line 50, in wrapper

2022-09-06T14:59:11+0000     rv = func(S, *args, **kwargs)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/smurf_util.py", line 1575, in read_adc_data

2022-09-06T14:59:11+0000     hw_trigger=hw_trigger)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/pub.py", line 50, in wrapper

2022-09-06T14:59:11+0000     rv = func(S, *args, **kwargs)
  File "/usr/local/src/pysmurf/python/pysmurf/client/util/smurf_util.py", line 1464, in read_stream_data_daq

2022-09-06T14:59:11+0000     sg.wait()
  File "/usr/local/src/pysmurf/python/pysmurf/client/command/sync_group.py", line 69, in wait

2022-09-06T14:59:11+0000     raise Exception('Timeout waiting for PVs to update.')

Start with enable_optical_amps.py and follow estimate_phase_delay through full_band_resp, check_adc_saturation, read_stream_data_daq, and sync_group.py. Reproduce phase-delay estimation while the other SMuRFs run setup procedures, then investigate the PV update timeout. Done means the estimation completes without the reported TimeoutError under parallel operation.