[FEATURE] Correct Doc of Async Query Cancellation API permission

[penghuo]

Is your feature request related to a problem?
In
https://github.com/opensearch-project/sql/blob/main/docs/user/interfaces/asyncqueryinterface.rst#async-query-interface-endpoints

Async Query Cancellation API
If security plugin is enabled, this API can only be invoked by users with permission cluster:admin/opensearch/ql/jobs/delete.

it should be cluster:admin/opensearch/ql/async_query/delete

https://github.com/opensearch-project/sql/blob/main/spark/src/main/java/org/opensearch/sql/spark/transport/TransportCancelAsyncQueryRequestAction.java#L21