Fix intermittent TypeError argument of type 'NoneType' is not iterable

[Snuffy2]

ERROR (MainThread) [homeassistant] Error doing job: Future exception was never retrieved
Traceback (most recent call last):
File "/usr/local/lib/python3.11/concurrent/futures/thread.py", line 58, in run
result = self.fn(*self.args, **self.kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/places/sensor.py", line 710, in tsc_update
self.do_update("Track State Change")
File "/config/custom_components/places/sensor.py", line 2287, in do_update
self.parse_osm_dict()
File "/config/custom_components/places/sensor.py", line 1101, in parse_osm_dict
if "namedetails" in self.get_attr(ATTR_OSM_DICT) and "name" in self.get_attr(
^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: argument of type 'NoneType' is not iterable