[2.4.0] Checkmk Werk 16710 created: Better handling of notification result in case of timeout

[//]: # (werk v2) # Better handling of notification result in case of timeout key | value ---------- | --- compatible | yes version | 2.4.0b1 date | 2024-06-05T09:42:42+00:00 level | 1 class | fix component | notifications edition | cre Werk #16707 added useful log information to failed notifications in case of a timeout. In some cases, this log contained also script output. We now show the timeout message within "Summary" of the notification result and, if available, the last output of the notification plugin followed by the timeout message within the "Comment" column. Both are separated by "--".