JSONDecodeError in Radiometer agent during midnight file rotation

[BrianJKoopman]

This weekend we hit this twice:

2025-08-09 00:00:40.913 2025-08-09T00:00:40+0000 acq:0 CRASH: [Failure instance: Traceback: <class 'requests.exceptions.JSONDecodeError'>: Expecting value: line 1 column 9 (char 8)
2025-08-09 00:00:40.913 /opt/venv/lib/python3.10/site-packages/twisted/python/threadpool.py:269:inContext
2025-08-09 00:00:40.913 /opt/venv/lib/python3.10/site-packages/twisted/python/threadpool.py:285:<lambda>
2025-08-09 00:00:40.913 /opt/venv/lib/python3.10/site-packages/twisted/python/context.py:117:callWithContext
2025-08-09 00:00:40.913 /opt/venv/lib/python3.10/site-packages/twisted/python/context.py:82:callWithContext
2025-08-09 00:00:40.913 /opt/venv/lib/python3.10/site-packages/ocs/ocs_agent.py:984:_running_wrapper
2025-08-09 00:00:40.913 /opt/venv/lib/python3.10/site-packages/socs/agents/ucsc_radiometer/agent.py:83:acq
2025-08-09 00:00:40.913 /opt/venv/lib/python3.10/site-packages/requests/models.py:978:json
2025-08-09 00:00:40.913 ]
2025-08-09 00:00:40.913 2025-08-09T00:00:40+0000 acq:0 Status is now "done".

2025-08-09 00:08:10.399 2025-08-09T00:08:10+0000 startup-op: launching acq
2025-08-09 00:08:10.399 2025-08-09T00:08:10+0000 start called for acq
2025-08-09 00:08:10.399 2025-08-09T00:08:10+0000 acq:0 Status is now "starting".
2025-08-09 00:08:10.409 2025-08-09T00:08:10+0000 acq:0 Status is now "running".
2025-08-10 00:00:39.588 2025-08-10T00:00:39+0000 acq:0 CRASH: [Failure instance: Traceback: <class 'requests.exceptions.JSONDecodeError'>: Expecting value: line 1 column 9 (char 8)
2025-08-10 00:00:39.588 /opt/venv/lib/python3.10/site-packages/twisted/python/threadpool.py:269:inContext
2025-08-10 00:00:39.588 /opt/venv/lib/python3.10/site-packages/twisted/python/threadpool.py:285:<lambda>
2025-08-10 00:00:39.588 /opt/venv/lib/python3.10/site-packages/twisted/python/context.py:117:callWithContext
2025-08-10 00:00:39.588 /opt/venv/lib/python3.10/site-packages/twisted/python/context.py:82:callWithContext
2025-08-10 00:00:39.588 /opt/venv/lib/python3.10/site-packages/ocs/ocs_agent.py:984:_running_wrapper
2025-08-10 00:00:39.588 /opt/venv/lib/python3.10/site-packages/socs/agents/ucsc_radiometer/agent.py:83:acq
2025-08-10 00:00:39.588 /opt/venv/lib/python3.10/site-packages/requests/models.py:978:json
2025-08-10 00:00:39.588 ]
2025-08-10 00:00:39.588 2025-08-10T00:00:39+0000 acq:0 Status is now "done".

It occurs right at midnight. I think we're probably just getting some garbage response when the log files that the web server we query are rotating. We'll need some additional error handling here.