Fix wifi.Radio.connect return type

Author: prplz

shared-bindings/wifi/Radio.c

@@ -304,7 +304,7 @@ MP_DEFINE_CONST_FUN_OBJ_1(wifi_radio_stop_ap_obj, wifi_radio_stop_ap);
 //|                 *,
 //|                 channel: Optional[int] = 0,
 //|                 bssid: Optional[ReadableBuffer] = b"",
-//|                 timeout: Optional[float] = None) -> bool:
+//|                 timeout: Optional[float] = None) -> None:
 //|         """Connects to the given ssid and waits for an ip address. Reconnections are handled
 //|            automatically once one connection succeeds.
 //|