Aspect-only metadata import for Dataplex Catalog metadata is generally available (GA)

## Feature Aspect-only metadata import for Dataplex Catalog metadata is generally available ([GA](https://cloud.google.com/products#product-launch-stages)). Use an aspect-only metadata job to incrementally modify aspects, without modifying other metadata that belongs to entries in the job's scope. For more information, see [Import metadata using a custom pipeline](https://cloud.google.com/dataplex/docs/import-metadata).