Wandering Trader does not trade Cherry Saplings

Summary:
Wandering Trader does not trade Cherry Saplings. Cherry Saplings is simply missing from the wandering_trader_trades.json file. This is a break in parity, as the Wandering Trader can trade Cherry Saplings in Java.

Steps to reproduce:

1. Summon many Wandering Traders.
2. Check their trades for Cherry Saplings.

Observed results:
Wandering Trader does not trade Cherry Saplings.

Expected results:
Wandering Trader will trade Cherry Saplings.

Screenshots: