typing stubs: add Magic.__init__ extension & follow_symlinks args

Author: risicle

magic/__init__.pyi

@@ -11,7 +11,7 @@ class Magic:
     flags: int = ...
     cookie: Any = ...
     lock: threading.Lock = ...
-    def __init__(self, mime: bool = ..., magic_file: Optional[Any] = ..., mime_encoding: bool = ..., keep_going: bool = ..., uncompress: bool = ..., raw: bool = ...) -> None: ...
+    def __init__(self, mime: bool = ..., magic_file: Optional[Any] = ..., mime_encoding: bool = ..., keep_going: bool = ..., uncompress: bool = ..., raw: bool = ..., extension: bool = ..., follow_symlinks: bool = ...) -> None: ...
     def from_buffer(self, buf: Union[bytes, str]) -> Text: ...
     def from_file(self, filename: Union[bytes, str, PathLike]) -> Text: ...
     def from_descriptor(self, fd: int, mime: bool = ...) -> Text: ...