Update frequenz-channel-python to v0.13.0

... and stop MergeNamed object in BatteriesStatus.

Signed-off-by: ela-kotulska-frequenz <[email protected]>

Author: ela-kotulska-frequenz

pyproject.toml

@@ -26,7 +26,7 @@ classifiers = [
 requires-python = ">= 3.8, < 4"
 dependencies = [
     "frequenz-api-microgrid >= 0.11.0, < 0.12.0",
-    "frequenz-channels >= 0.12.0, < 0.13.0",
+    "frequenz-channels >= 0.13.0, < 0.14.0",
     "google-api-python-client >= 2.71, < 3",
     "grpcio >= 1.51.1, < 2",
     "grpcio-tools >= 1.51.1, < 2",

src/frequenz/sdk/actor/power_distributing/_batteries_status.py

@@ -125,13 +125,15 @@ def __init__(
 
     async def stop(self) -> None:
         """Stop tracking batteries status."""
+        await cancel_and_await(self._task)
+
         await asyncio.gather(
             *[
                 tracker.stop()  # pylint: disable=protected-access
                 for tracker in self._batteries.values()
-            ]
+            ],
         )
-        await cancel_and_await(self._task)
+        await self._battery_status_channel.stop()
 
     async def _run(self) -> None:
         """Start tracking batteries status."""