SIENTIAPDE-1646

Update README, requirements, and E2E tests for improved configuration and functionality

- Enhanced the README with updated model configuration examples, including the addition of an alias for production.
- Removed the `requirements-light.txt` file and updated `requirements-local.txt` and `requirements.txt` to replace `asyncua` with `opcua`.
- Refactored E2E test scenarios to utilize scenario input files for better maintainability and clarity.
- Improved test coverage for MinIO offload functionality and added new helper functions for loading scenario inputs.
- Updated `values.yaml` to reflect new global configurations and environment variables for the laborious worker.

laborious/worker/worker.py

@@ -162,7 +162,7 @@ async def main():
     )
 
     logger.custom_info('Initializing OPC...', metadata)
-    await activities.init_opc()
+    activities.init_opc()
 
     logger.custom_info(f'Starting SDK Metrics Server on port {SDK_METRICS_PORT}...', metadata)
 
@@ -265,7 +265,7 @@ async def main():
         exit_code = 1
     finally:
         notification_handler.shutdown()
-        await activities.shutdown()
+        activities.shutdown()
         metrics.APP_UP.labels(pod_id=POD_ID).set(0)  # Mark app as DOWN
         sys.exit(exit_code)