(Managed Airflow Gen 3) You can now access Cloud Run endpoints restricted to internal ingress traffic

## Feature Feature _(Managed Airflow Gen 3)_ You can now[access Cloud Run endpoints restricted to internal ingress traffic](https://docs.cloud.google.com/composer/docs/composer-3/connect-vpc-network#cloud-run-traffic)through your environment's network attachment. This feature is available through gcloud CLI beta commands and beta Cloud Composer API in all Managed Airflow (Gen 3) versions.