Third-party stubs: audit more Callable[<parameters>, Any] annotations (#8233)

stubs/invoke/invoke/util.pyi

@@ -16,14 +16,14 @@ def cd(where: str) -> AbstractContextManager[None]: ...
 def has_fileno(stream) -> bool: ...
 def isatty(stream) -> bool: ...
 def encode_output(string: str, encoding: str) -> str: ...
-def helpline(obj: Callable[..., Any]) -> str | None: ...
+def helpline(obj: Callable[..., object]) -> str | None: ...
 
 class ExceptionHandlingThread(threading.Thread):
     def __init__(
         self,
         *,
         group: None = ...,
-        target: Callable[..., Any] | None = ...,
+        target: Callable[..., object] | None = ...,
         name: str | None = ...,
         args: Iterable[Any] = ...,
         kwargs: Mapping[str, Any] | None = ...,