typing.pyi: IO.name may be bytes (#10738)

stdlib/typing.pyi

@@ -709,8 +709,10 @@ class IO(Iterator[AnyStr], Generic[AnyStr]):
     # See #8726
     @property
     def mode(self) -> str: ...
+    # Usually str, but may be bytes if a bytes path was passed to open(). See #10737.
+    # If PEP 696 becomes available, we may want to use a defaulted TypeVar here.
     @property
-    def name(self) -> str: ...
+    def name(self) -> str | Any: ...
     @abstractmethod
     def close(self) -> None: ...
     @property