fixup! feat(datasets): add backward compat for DatasetAll, DatasetAny…

…, expand_alias_to_datasets and DatasetAliasEvent

airflow/datasets/__init__.py

@@ -63,7 +63,7 @@ def __getattr__(name: str):
         from typing import Any, TypedDict
 
         # This will be moved to airflow.utils.context but the key will be changed.
-        # Thus, redefined it for backward compatibiity
+        # Thus, redefined it for backward compatibility
         class DatasetAliasEvent(TypedDict):
             """A represeation of dataset event to be triggered by a dataset alias."""