fix CRLF/LF

Author: brentru

adafruit_esp32spi/adafruit_esp32spi.py

@@ -822,4 +822,4 @@ def set_private_key(self, private_key):
         resp = self._send_command_get_response(_SET_PK, (private_key,))
         if resp[0][0] != 1:
             raise RuntimeError("Failed to set private key.")
-        return resp[0]
+        return resp[0]