Fixing camera telemetry where accessing its telemetry before a certain time after startup would causes a KeyError because the fields in the response were not present. Now catching the KeyError exception to fix the problem.
Fixing camera telemetry where accessing its telemetry before a certain time after startup would causes a KeyError because the fields in the response were not present. Now catching the KeyError exception to fix the problem.

Signed-off-by: Sebastien Gemme <cc800b5be96a6970e6bad724f3680cc839bbde0c@canada.ca>

clearpathrobotics/axis_camera,ros-drivers/axis_camera