SIENTIAPDE-1172

Update GITHUB_BRANCH in values.yaml and enhance error notification handling in MLFlow

- Changed GITHUB_BRANCH in values.yaml to reflect the new pipeline for alerts orchestration.
- Added NotificationLevel.ERROR to error notifications in MLFlow for retraining and production model updates.
- Updated tests to verify error notification levels for model management workflows.

tests/laborious/activities/test_mlflow.py

@@ -4,6 +4,7 @@ import numpy as np
 from pandas import DataFrame
 from pytest import fixture, mark
 from laborious.activities.mlflow import MLFlow
+from sientia_do.notifications.models import NotificationLevel
 
 
 @patch("laborious.activities.mlflow.MLFlowRepository")
@@ -203,6 +204,7 @@ async def test_retrain_model_error(mlflow):
             notification_id='RETRAIN_MODEL_ERROR',
             message='Error retraining model test_model: Error retraining model',
             block='retrain_model',
+            level=NotificationLevel.ERROR,
             attachment_content=ANY
         )
     else:
@@ -266,6 +268,7 @@ async def test_update_production_model_error(mlflow):
             notification_id='UPDATE_PRODUCTION_MODEL_ERROR',
             message='Error updating production model test_model: Error updating production model',
             block='update_production_model',
+            level=NotificationLevel.ERROR,
             attachment_content=ANY
         )
     else: