change to analog_out param pin

Author: tcfranks

adafruit_pcf8591/analog_out.py

@@ -40,7 +40,7 @@ def __init__(self, pcf: PCF8591, dac_pin: int = 0) -> None:
         """AnalogIn
 
         :param pcf: The pcf object.
-        :param adafruit_pcf8591.pcf8591.A0 pin: Required pin must be A0
+        :param int pin: Required pin must be adafruit_pcf8591.pcf8591.A0
 
         """
         self._pcf = pcf