main/lua-socket: upgrade to 3.1.0
change/update upstream source and url
luaforge.net is domain-squatted and https://github.com/diegonehab/luasocket redirects to lunarmodules/luasocket
change/update upstream source and url
luaforge.net is domain-squatted and https://github.com/diegonehab/luasocket redirects to lunarmodules/luasocket