Clarify audit log permissions (#34815)

(cherry picked from commit 1f3525f)

Author: pierrejeambrun

docs/apache-airflow/security/audit_logs.rst

@@ -28,6 +28,8 @@ They provide a way to track user actions and system events, which can be used to
 In Airflow, audit logs are used to track user actions and system events that occur during the execution of DAGs and tasks.
 They are stored in a database and can be accessed through the Airflow UI.
 
+To be able to see audit logs, a user needs to have the ``Audit Logs.can_read`` permission. Such user will be able to see all audit logs, independently of the DAGs permissions applied.
+
 
 Level of Audit Logs
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