Amazon Neptune now supports reading S3 data using openCyper

Amazon Neptune now supports reading data directly from Amazon S3 within openCypher queries via a new `neptune.read()` procedure. This enables federated access to external S3 data without requiring it to be loaded into Neptune first. Key use cases include real-time graph analytics combining S3 data with graph structures, dynamic node and edge creation from external datasets, and complex queries using external reference data. The feature supports standard and Neptune-specific data types (geometry, datetime) and uses IAM credentials for security. It is available in all regions where Neptune Database is offered.