Update quarry.lua

walking_light adds enhanced torches by adding virtual light sources.
let's tread them like air.

technic/machines/HV/quarry.lua

@@ -169,7 +169,7 @@ local function quarry_run(pos, node)
 				for ay = startpos.y, digpos.y+1, -1 do
 					local checkpos = {x=digpos.x, y=ay, z=digpos.z}
 					local checknode = technic.get_or_load_node(checkpos) or minetest.get_node(checkpos)
-					if checknode.name ~= "air" then
+					if checknode.name ~= "air" and checknode.name ~= "walking_light:light" then
 						can_dig = false
 						break
 					end