fix: Stop key adjusted after local testing (#14)

Co-authored-by: Daniel Claes <git@danielclaes.de>

switchbot/__init__.py

@@ -21,7 +21,7 @@ OFF_KEY = "570102"
 OPEN_KEY = "570f450105ff00"  # 570F4501010100
 CLOSE_KEY = "570f450105ff64"  # 570F4501010164
 POSITION_KEY = "570F450105ff"  # +actual_position ex: 570F450105ff32 for 50%
-STOP_KEY = "570F45010001"
+STOP_KEY = "570F450100ff"
 
 ON_KEY_SUFFIX = "01"
 OFF_KEY_SUFFIX = "02"