[2.3.0] Checkmk Werk 16368 created: service_discovery: Fixed internal server error on service discovery when IP cannot be resolved

[//]: # (werk v2) # service_discovery: Fixed internal server error on service discovery when IP cannot be resolved key | value ---------- | --- date | 2024-02-12T12:34:21+00:00 version | 2.3.0b1 class | fix edition | cre component | rest-api level | 1 compatible | yes Prior to this Werk, when a service discovery was requested from a host whose IP could not be resolved, the endpoint returned a 500 error status (Internal Server Error). This Werk corrects this behavior and now returns error code 400.