Rename alert_vdu DAG to vdu_down

Change-Id: I757a154acc11c592c9d78a3be3355761a4089edc
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/src/osm_ngsa/dags/alert_vdu.py b/src/osm_ngsa/dags/vdu_down.py
similarity index 99%
rename from src/osm_ngsa/dags/alert_vdu.py
rename to src/osm_ngsa/dags/vdu_down.py
index c314893..13bc207 100644
--- a/src/osm_ngsa/dags/alert_vdu.py
+++ b/src/osm_ngsa/dags/vdu_down.py
@@ -43,7 +43,7 @@
     start_date=datetime(2022, 1, 1),
     tags=["osm", "webhook"],
 )
-def alert_vdu():
+def vdu_down():
     @task(task_id="main_task")
     def main_task():
         logger.debug("Running main task...")
@@ -184,4 +184,4 @@
     main_task()
 
 
-dag = alert_vdu()
+dag = vdu_down()