Ignore missing type stubs for entsoe package

The entsoe package started shipping a py.typed file since
version >= 0.7.1 but it does not actually include any type
information. The missing attribute for this package is
ignored to avoid mypy errors when importing from entsoe.

Signed-off-by: Daniel Zullo <daniel.zullo@frequenz.com>

Author: daniel-zullo-frequenz

src/frequenz/client/electricity_trading/cli/day_ahead.py

@@ -6,7 +6,7 @@
 from datetime import datetime
 
 import pandas as pd
-from entsoe import EntsoePandasClient
+from entsoe import EntsoePandasClient  # type: ignore[attr-defined]
 
 
 def list_day_ahead_prices(