A renovation worker who punched a Post photographer when a group of men confronted anti-government protesters in September pleaded guilty to assault on Thursday.Fu Yeung-kam, 45, admitted one count of common assault at Eastern Magistrates’ Court for his attack on Antony Dickson in North Point on September 15.He pleaded guilty to a further count of the same charge for assaulting another unknown man, an attack Dickson tried to stop.After hearing his lawyer claim the attack was out of character,…