[2.4.0] Checkmk Werk 17110 created: Don't crash on broken plugins unless in debug mode

[//]: # (werk v2) # Don't crash on broken plugins unless in debug mode key | value ---------- | --- date | 2024-06-23T22:27:30+00:00 version | 2.4.0b1 class | fix edition | cre component | checks level | 1 compatible | yes This is a regression in Checkmk 2.3 that only affects plugin developers. Individual broken plugins could make the whole plugin loading crash. Now the error is only reported, and the plugin is skipped. For the debugging purposes, the crashing can be triggered using the `--debug` flag.