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

stubs/python-jose/jose/backends/base.pyi

@@ -1,5 +1,5 @@
-from _typeshed import Self
 from typing import Any
+from typing_extensions import Self
 
 class Key:
     # Enable when we can use stubs from installed dependencies,
@@ -8,7 +8,7 @@ class Key:
     def __init__(self, key, algorithm) -> None: ...
     def sign(self, msg: bytes) -> bytes: ...
     def verify(self, msg: bytes, sig: bytes) -> bool: ...
-    def public_key(self: Self) -> Self: ...
+    def public_key(self) -> Self: ...
     def to_pem(self) -> bytes: ...
     def to_dict(self) -> dict[str, Any]: ...
     def encrypt(self, plain_text: str | bytes, aad: bytes | None = ...) -> tuple[bytes, bytes, bytes | None]: ...

stubs/python-jose/jose/backends/ecdsa_backend.pyi

@@ -1,7 +1,7 @@
-from _typeshed import Self
 from collections.abc import Callable
 from hashlib import _Hash
 from typing import Any
+from typing_extensions import Self
 
 from .base import Key
 
@@ -20,6 +20,6 @@ class ECDSAECKey(Key):
     def sign(self, msg): ...
     def verify(self, msg, sig): ...
     def is_public(self) -> bool: ...
-    def public_key(self: Self) -> Self: ...
+    def public_key(self) -> Self: ...
     def to_pem(self): ...
     def to_dict(self) -> dict[str, Any]: ...

stubs/python-jose/jose/backends/rsa_backend.pyi

@@ -1,5 +1,5 @@
-from _typeshed import Self
 from typing import Any
+from typing_extensions import Self
 
 from .base import Key
 
@@ -20,7 +20,7 @@ class RSAKey(Key):
     def sign(self, msg: bytes) -> bytes: ...
     def verify(self, msg: bytes, sig: bytes) -> bool: ...
     def is_public(self) -> bool: ...
-    def public_key(self: Self) -> Self: ...
+    def public_key(self) -> Self: ...
     def to_pem(self, pem_format: str = ...) -> bytes: ...
     def to_dict(self) -> dict[str, Any]: ...
     def wrap_key(self, key_data: bytes) -> bytes: ...