LeRobot v0.4.0: Supercharging OSS Robot Learning

LeRobot v0.4.0 has been released, introducing enhancements to its open-source robot learning framework. Key updates include improved support for reinforcement learning algorithms, a new modular architecture for easier integration of custom components, and optimized performance benchmarks showing a 30% increase in training efficiency compared to the previous version. These advancements facilitate faster development cycles and greater flexibility for practitioners working on robotic applications.