🩹🔧 fix: Use CronTriggerTimetable to schedule promptbolus once a month

Author: laurabegin

dags/enriched_promptbolus.py

@@ -7,6 +7,7 @@
 
 import pendulum
 from airflow import DAG
+from airflow.timetables.trigger import CronTriggerTimetable
 from airflow.utils.task_group import TaskGroup
 from airflow.utils.trigger_rule import TriggerRule
 
@@ -52,7 +53,7 @@
     dag_id="enriched_promptbolus",
     doc_md=DOC,
     start_date=datetime(2025, 3, 1, 8, tzinfo=pendulum.timezone("America/Montreal")),
-    schedule_interval="0 7 1-7 * 2",  # First tuesday of the month at 7:00 AM
+    schedule="0 7 * * 2#1",  # First tuesday of the month at 7:00 AM
     params=params,
     dagrun_timeout=timedelta(hours=default_timeout_hours),
     default_args=args,