Make all arguments keyword-only

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

src/frequenz/sdk/config/_logging_actor.py

@@ -133,6 +133,7 @@ async def run() -> None:
 
     def __init__(
         self,
+        *,
         config_recv: Receiver[Mapping[str, Any]],
         log_format: str = "%(asctime)s %(levelname)-8s %(name)s:%(lineno)s: %(message)s",
         log_datefmt: str = "%Y-%m-%dT%H:%M:%S%z",