feat: update dependencies and enhance metrics integration
- Updated sientia-dataops-library dependency version from 1.3.5 to 1.3.7 in requirements.txt.
- Incremented image tag in values.yaml from 0.2.7 to 0.3.1.
- Added Prometheus metrics service configuration in values.yaml, enabling metrics collection.
- Implemented Prometheus client in worker.py to start a metrics server and track application health.