[2.4.0] Checkmk Werk 17160 created: Opsgenie: Better error handling

[//]: # (werk v2) # Opsgenie: Better error handling key | value ---------- | --- date | 2024-08-12T12:32:45+00:00 version | 2.4.0b1 class | fix edition | cre component | notifications level | 1 compatible | yes In earlier versions some errors (like authentication failures) lead to a traceback. Errors should be shown in a better way now.