Pyre: name has type `str` but is used as type `None` (#1336)

"filename": "pdm/cli/options.py"
"warning_type": "Incompatible variable type [9]",
"warning_message": " name is declared to have type `str` but is used as type `None`.",
"warning_line": 62
"fix": remove none

src/pdm/cli/options.py

@@ -59,7 +59,7 @@ class ArgumentGroup(Option):
 
     def __init__(
         self,
-        name: str = None,
+        name: str,
         is_mutually_exclusive: bool = False,
         required: bool = None,
     ) -> None: