Fixing reportTEC bug when using three AG cameras

2023-04-29 22:04:30.973Z cmds             20 Actor.py:525 new cmd: expose object visit=92715 exptime=5.0 centroid=1
2023-04-29 22:04:30.988Z cmds             20 CommandLink.py:121 > 2 4 i text="read magFit = [-2.227, 27.66]"
2023-04-29 22:04:30.988Z cmds             20 CommandLink.py:121 > 2 4 i text="found cameras: [1, 3, 5]"
2023-04-29 22:04:30.988Z cmds             20 CommandLink.py:121 > 2 4 i text="Number of AG cameras = 3"
2023-04-29 22:04:30.994Z cmds             20 CommandLink.py:121 > 2 4 f text="command failed: AttributeError(\"'NoneType' object has no attribute 'getTemperature'\") in reportTEC() at /software/mhs/products/Linux64/ics_agccActor/1.2.1/lib/python/agccActor/camera.py:83"