commit message: fix(redis-client): fix broken types

Author: kesha1225

redis/commands/core.py

@@ -190,8 +190,8 @@ def acl_setuser(
         username: str,
         enabled: bool = False,
         nopass: bool = False,
-        passwords: Optional[str, Iterable[str]] = None,
-        hashed_passwords: Optional[str, Iterable[str]] = None,
+        passwords: Optional[Union[str, Iterable[str]]] = None,
+        hashed_passwords: Optional[Union[str, Iterable[str]]] = None,
         categories: Optional[Iterable[str]] = None,
         commands: Optional[Iterable[str]] = None,
         keys: Optional[Iterable[KeyT]] = None,