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.

requirements.txt

@@ -3,6 +3,6 @@ psycopg2-binary
 sqlalchemy
 asyncua
 redis
-git+ssh://git@github.com/Aignosi/sientia-dataops-library.git@1.3.7
+git+ssh://git@github.com/Aignosi/sientia-dataops-library.git@1.3.8
 git+ssh://git@github.com/Aignosi/sientia-mlops-library.git@0.38.5
 prometheus-client