Merge pull request #13129 from nextcloud/chore/document-oc-helper-can-exec

Author: provokateurin

developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_32.rst

@@ -51,6 +51,7 @@ Deprecated APIs
 
 - The files API endpoint ``/apps/files/api/v1/thumbnail/`` for generating previews is deprecated.
   Instead use the preview endpoint provided by Nextcloud core (``/core/preview``).
+- The legacy method ``\OC_Helper::canExecute`` is deprecated, please use the ``OCP\IBinaryFinder`` instead.
 
 Removed APIs
 ^^^^^^^^^^^^