chore: Add info about omitted user fields

Author: novotnyj

sources/platform/api_v2/api_v2_reference.apib

@@ -4012,6 +4012,8 @@ This operation requires no authentication token.
 Returns information about the current user account, including both public and private information.
 The user account is identified by the provided authentication token.
 
+The fields `plan`, `email` and `profile` are omitted when this endpoint is accessed from Actor run.
+
 + Response 200 (application/json)
 
     + Attributes