Enriches all given extracts and/or entities with a list of enrichers or with all available enrichers (if `enricher_tasks` is empty). If a list entities is provided, all entity extracts are enriched.

The endpoint return a TaskGroup with progress details for all invoked
tasks.

Required permissions

• modify enrichments

• read tasks

Optional permissions

• read entities Required to specify a list of entities

• read extracts Required to specify a list of observables