chore: bitvavo uses DECIMAL_PLACES for amount rounding

closes #9560

freqtrade/exchange/bitvavo.py

@@ -1,8 +1,10 @@
-"""Kucoin exchange subclass."""
+"""Bitvavo exchange subclass."""
 
 import logging
 from typing import Dict
 
+from ccxt import DECIMAL_PLACES
+
 from freqtrade.exchange import Exchange
 
 
@@ -22,3 +24,11 @@ class Bitvavo(Exchange):
     _ft_has: Dict = {
         "ohlcv_candle_limit": 1440,
     }
+
+    @property
+    def precisionMode(self) -> int:
+        """
+        Exchange ccxt precisionMode
+        Override due to https://github.com/ccxt/ccxt/issues/20408
+        """
+        return DECIMAL_PLACES