Exclude depositTxId as it seems that leads to

duplicates (we got about 1000 objects more without excluding it,
so seems some traders had set it to null, prob. due bugs)

core/src/main/java/bisq/core/trade/statistics/TradeStatistics2.java

@@ -87,6 +87,7 @@ public final class TradeStatistics2 implements ProcessOncePersistableNetworkPayl
     // tradeDate is different for both peers so we ignore it for hash
     @JsonExclude
     private final long tradeDate;
+    @JsonExclude
     @Nullable
     private final String depositTxId;