fix: usage of SlashCommandOptionType since its a subclass of tuple (Pycord-Development#2901)

Author: Lulalaby

discord/commands/options.py

@@ -333,6 +333,9 @@ def __init__(self, input_type: InputType = str, /, description: str | None = Non
 
     @staticmethod
     def _strip_none_type(input_type):
+        if isinstance(input_type, SlashCommandOptionType):
+            return input_type
+
         if input_type is type(None):
             raise TypeError("Option type cannot be only NoneType")