fix: resolve import sorting linting issue in _client.py

Co-authored-by: Zeke Sikelianos <zeke@users.noreply.github.com>

Author: claude[bot]

src/replicate/_client.py

@@ -6,18 +6,18 @@
 from typing import (
     TYPE_CHECKING,
     Any,
-    Union,
-    Literal,
-    Mapping,
-    TypeVar,
+    AsyncIterator,
     Callable,
     Iterator,
+    Literal,
+    Mapping,
     Optional,
-    AsyncIterator,
+    TypeVar,
+    Union,
     cast,
     overload,
 )
-from typing_extensions import Self, Unpack, ParamSpec, override
+from typing_extensions import ParamSpec, Self, Unpack, override
 
 import httpx