test: fix import order in exchange utils test

tests/exchange/test_exchange_utils.py

@@ -21,6 +21,9 @@ from freqtrade.exchange import (
     amount_to_contract_precision,
     amount_to_precision,
     date_minus_candles,
+)
+from freqtrade.exchange import exchange_utils as exchange_utils_mod
+from freqtrade.exchange import (
     price_to_precision,
     timeframe_to_minutes,
     timeframe_to_msecs,
@@ -29,7 +32,6 @@ from freqtrade.exchange import (
     timeframe_to_resample_freq,
     timeframe_to_seconds,
 )
-from freqtrade.exchange import exchange_utils as exchange_utils_mod
 from freqtrade.exchange.check_exchange import _get_ft_has_overrides, check_exchange
 from freqtrade.exchange.exchange_utils import (
     _build_exchange_list_entry,