make pylint happy with import order

meshtastic/ble_interface.py

@@ -5,10 +5,10 @@ import time
 import struct
 import asyncio
 from threading import Thread, Event
-from bleak import BleakScanner, BleakClient
-
 from typing import Optional
 
+from bleak import BleakScanner, BleakClient
+
 from meshtastic.mesh_interface import MeshInterface
 from meshtastic.util import our_exit
 

meshtastic/serial_interface.py

@@ -4,10 +4,10 @@ import logging
 import platform
 import time
 
-import serial # type: ignore[import-untyped]
-
 from typing import Optional
 
+import serial # type: ignore[import-untyped]
+
 import meshtastic.util
 from meshtastic.stream_interface import StreamInterface