Add Villager Trade for Map to Ancient City

There already exist maps for trial chambers, water temples, and, with the villager changes, there are now maps to other villages. Why not the ancient city? Without using tools like chunkbase, the ancient city is a real pain to find. Maybe this is intentional, but I feel like if there's maps to trial chambers, there may as well be maps to the ancient cities too.

Mojang please fix XOXO