Fixed a typing error in socket.accept().

Author: BiffoBear

adafruit_wiznet5k/adafruit_wiznet5k_socket.py

@@ -285,10 +285,11 @@ def listen(self, backlog: Optional[Any] = None) -> None:
 
     def accept(
         self,
-    ) -> Union[
-        wiznet5k.adafruit_wiznet5k_socket.socket,
-        Tuple[int, Tuple[Union[str, bytearray], Union[int, bytearray]]],
-        None,
+    ) -> Optional[
+        Tuple[
+            wiznet5k.adafruit_wiznet5k_socket.socket,
+            Tuple[Union[str, bytearray], Union[int, bytearray]],
+        ]
     ]:
         """
         Accept a connection.