Use typing_extensions.Self instead of _typeshed.Self (#9702)

stubs/ExifRead/exifread/utils.pyi

@@ -1,7 +1,7 @@
-from _typeshed import Self
 from collections.abc import Mapping
 from fractions import Fraction
 from typing import Any, TypeVar, overload
+from typing_extensions import Self
 
 _T = TypeVar("_T")
 
@@ -14,7 +14,7 @@ def make_string_uc(seq: str | list[int]) -> str: ...
 def get_gps_coords(tags: Mapping[str, Any]) -> tuple[float, float]: ...
 
 class Ratio(Fraction):
-    def __new__(cls: type[Self], numerator: int = ..., denominator: int | None = ...) -> Self: ...
+    def __new__(cls, numerator: int = ..., denominator: int | None = ...) -> Self: ...
     @property
     def num(self) -> int: ...
     @property