Lockpicks can be found now in the witchcraft trader inventory.
Not all the time it seems, but they do appear there. I saw five of them yesterday. All at once. Just waiting for someone to buy them.
I have to say i dont like the new unbreakable items at all. Thats probably the only thing i dont like in this update. There is surplus of lot and you keep finding better and better loot all the time, so items having some durability was fitting with that and with mechanics for crafting and repair.
The unbreakable items are just added because of complaints of ... undesirable elements.
It doesnt really fit with the game. And now there are various helmets and boots and such equipment that is also - unbreakable - for some mysterious reason.
Dont. like. it.