Fix typo in airflow/utils/dag_processing.py
diff --git a/airflow/utils/dag_processing.py b/airflow/utils/dag_processing.py
index 6581164a06590..0d6110798af15 100644
--- a/airflow/utils/dag_processing.py
+++ b/airflow/utils/dag_processing.py
@@ -112,7 +112,7 @@ def result(self) -> Optional[Tuple[int, int]]:
         """
         A list of simple dags found, and the number of import errors
 
-        :return: result of running SchedulerJob.process_file() if availlablle. Otherwise, none
+        :return: result of running SchedulerJob.process_file() if available. Otherwise, none
         :rtype: Optional[Tuple[int, int]]
         """
         raise NotImplementedError()

`availlablle` -> `available`

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