Enable validation of init file examples

Signed-off-by: Mathias L. Baumann <[email protected]>

Author: Marenz

src/frequenz/client/electricity_trading/conftest.py

@@ -10,4 +10,9 @@
 from frequenz.repo.config.pytest import examples
 from sybil import Sybil
 
-pytest_collect_file = Sybil(**examples.get_sybil_arguments()).pytest()
+args = examples.get_sybil_arguments()
+# Pop "excludes" which was added upstream to work around a sybil bug
+# with __init__.py files
+args.pop("excludes", None)
+
+pytest_collect_file = Sybil(**args).pytest()