A humanoid robot has won a half-marathon race for robots in Beijing, running faster than the human world record in a show of China's technological leaps.The winner from Honor, a Chinese smartphone maker, completed the 21km race in 50 minutes and 26 seconds, according to a WeChat post by the Beijing Economic-Technological Development Area, also known as Beijing E-Town, where the race kicked off.That was easily faster than the human world record holder, Uganda's Jacob Kiplimo, who finished the same distance in about 57 minutes in March at the Lisbon road race.The performance by the robot marked a significant step…