generate_listener.py: add a timeout of 2 seconds
generate_listener.py: add a timeout of 2 seconds

abort if within 2s there is no new message published

darknight-007/Firmware,dagar/Firmware,Aerotenna/Firmware,krbeverx/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,acfloria/Firmware,dagar/Firmware,Aerotenna/Firmware,mje-nz/PX4-Firmware,mcgill-robotics/Firmware,krbeverx/Firmware,Aerotenna/Firmware,acfloria/Firmware,PX4/Firmware,krbeverx/Firmware,Aerotenna/Firmware,dagar/Firmware,acfloria/Firmware,darknight-007/Firmware,acfloria/Firmware,jlecoeur/Firmware,Aerotenna/Firmware,dagar/Firmware,Aerotenna/Firmware,mcgill-robotics/Firmware,krbeverx/Firmware,jlecoeur/Firmware,PX4/Firmware,PX4/Firmware,acfloria/Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,jlecoeur/Firmware,PX4/Firmware,jlecoeur/Firmware,krbeverx/Firmware,dagar/Firmware,acfloria/Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,dagar/Firmware,mje-nz/PX4-Firmware,jlecoeur/Firmware,darknight-007/Firmware,krbeverx/Firmware,PX4/Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,krbeverx/Firmware,darknight-007/Firmware,PX4/Firmware,mcgill-robotics/Firmware,mje-nz/PX4-Firmware,mcgill-robotics/Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,PX4/Firmware,acfloria/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,darknight-007/Firmware