Cleanup examples

examples/device_scanner.py

@@ -1,3 +1,4 @@
+# ruff: noqa: T201, D103
 import asyncio
 import logging
 
@@ -6,7 +7,7 @@ from findmy.scanner import OfflineFindingScanner
 logging.basicConfig(level=logging.INFO)
 
 
-async def scan():
+async def scan() -> None:
     scanner = await OfflineFindingScanner.create()
 
     print("Scanning for FindMy-devices...")
@@ -18,7 +19,7 @@ async def scan():
         print(f"  Lookup key:   {device.hashed_adv_key_b64}")
         print(f"  Status byte:  {device.status:x}")
         print(f"  Hint byte:    {device.hint:x}")
-        print(f"  Extra data:")
+        print("  Extra data:")
         for k, v in sorted(device.additional_data.items()):
             print(f"    {k:20}: {v}")
         print()