SIENTIAPDE-1712

Enhance E2E testing with MinIO support and update documentation

- Updated `requirements-dev.txt` to include MinIO support in testcontainers.
- Added a new fixture for MinIO container setup in `conftest.py` to facilitate E2E tests involving S3-compatible storage.
- Introduced a new test fixture for activities using a real MinIO container in `conftest.py`.
- Updated E2E test scenarios and documentation to reflect the integration of MinIO for offload uploads and clarified error handling in workflows.
- Refactored existing tests to improve clarity and maintainability.

laborious/activities/storage.py

@@ -1,5 +1,3 @@
-import json
-
 from temporalio import activity, workflow
 
 from laborious.utils.repository.minio_manager import MinioManager
@@ -195,14 +193,9 @@ class Storage(Postgres, MinioManager):
             )
             self.error(trace, metadata)
         else:
-            await self.send_notification_async(
-                metadata=metadata,
-                notification_id='CLEANUP_MINIO_OBJECTS_EXPIRED',
-                message='MinIO objects cleaned up successfully',
-                block='cleanup_minio_objects_expired',
-                level=NotificationLevel.INFO,
-                attachment_content=json.dumps(report),
-            )
+            # Cleanup success is expected in normal flow; avoid noisy INFO notifications
+            # that do not impact behavior and can flood observability in test runs.
+            self.info('MinIO objects cleaned up successfully', metadata)
 
         return report