This CL ensures that RainbowAgent.__init__ always calls the right function with an explicit call to dqn_agent.DQNAgent.__init__
This CL ensures that RainbowAgent.__init__ always calls the right function with an explicit call to dqn_agent.DQNAgent.__init__

PiperOrigin-RevId: 228805979

google/dopamine,google/dopamine,google/dopamine