SIENTIAPDE-1169

Update dependencies and configuration for improved functionality

- Updated sientia-dataops-library version from 1.3.7 to 1.3.8 in requirements.txt.
- Changed GITHUB_BRANCH in values.yaml to reflect new testing focus: SIENTIAPDE-1169.
- Modified notification level in gates.py from WARNING to ERROR for better error handling.

laborious/activities/gates.py

@@ -152,7 +152,7 @@ class Gates(BaseActivity):
                         notification_id=f"{gate_type.upper()}_GATE_RESPONSE_FILTER__{fil}",
                         message=data['content']['message'],
                         block="mlflow_gate",
-                        level=NotificationLevel.WARNING,
+                        level=NotificationLevel.ERROR,
                         attachment_content=data['content']['traceback']
                     )
             except Exception as e: