docs: fix typo in docstring (#5708)

cloudinit/lifecycle.py

@@ -139,7 +139,7 @@ def log_with_downgradable_level(
     :param version: Version string of the version that this log was introduced
     :param level: Preferred level at which this message should be logged
     :param msg: Message, as passed to the logger.
-    :param args: Message formatting args, ass passed to the logger
+    :param args: Message formatting args, as passed to the logger
 
     :return: True if the message should be logged, else False.
     """