Use PEP 570 syntax in third party stubs (#11554)

stubs/click-spinner/click_spinner/__init__.pyi

@@ -9,7 +9,7 @@ __version__: str
 class _Stream(Protocol):
     def isatty(self) -> bool: ...
     def flush(self) -> None: ...
-    def write(self, __s: str) -> int: ...
+    def write(self, s: str, /) -> int: ...
 
 class Spinner:
     spinner_cycle: Iterator[str]