Configure OpenSearch Ingestion pipelines for cross-account ingestion

AI Impact Summary

Amazon OpenSearch Ingestion now allows sharing pipelines across AWS accounts via VPCs, enabling a more flexible and scalable data ingestion architecture. This capability is particularly valuable for organizations with multiple accounts needing to share data processing logic, and supports integration with existing VPC infrastructure. The feature also introduces support for GPU acceleration and auto-optimize, enhancing vector search performance and simplifying data loading.