Updates RBAC requirements for 3rd-party response actions (#6434)

Author: natasha-moore-elastic

docs/management/admin/response-actions-config.asciidoc

@@ -19,7 +19,7 @@ Check out <<third-party-actions>> to learn which response actions are supported
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 * https://www.elastic.co/pricing[Subscription level]: Enterprise 
 
-* {kibana-ref}/kibana-role-management.html#adding_kibana_privileges[{kib} feature privilege]: **Actions and Connectors : All**.
+* {kibana-ref}/kibana-role-management.html#adding_kibana_privileges[{kib} feature privilege]: Under **Actions and Connectors**, turn on **Customize sub-feature privileges** and enable **Endpoint Security**.
 
 * <<endpoint-management-req,{elastic-sec} feature privileges>>: **All** for the response action features, such as **Host Isolation**, that you want to perform.