Reduce wait time in battery_pool test

This test was failing in arm64 runs, because of a large time
difference.  This fixes the issue.

Signed-off-by: Sahas Subramanian <sahas.subramanian@proton.me>

tests/timeseries/_battery_pool/test_battery_pool.py

@@ -1306,7 +1306,7 @@ async def run_power_bounds_test(  # pylint: disable=too-many-locals
 
     # One inverter stopped sending data, use one remaining inverter
     await streamer.stop_streaming(next(iter(bat_invs_map[batteries_in_pool[0]])))
-    await asyncio.sleep(MAX_BATTERY_DATA_AGE_SEC + 0.2)
+    await asyncio.sleep(MAX_BATTERY_DATA_AGE_SEC + 0.1)
     msg = await asyncio.wait_for(receiver.receive(), timeout=waiting_time_sec)
     compare_messages(
         msg,