[2.4.0] Checkmk Werk 16371 created: sla: range field for predefined_time_range parameter is mandatory

[//]: # (werk v2) # sla: range field for predefined_time_range parameter is mandatory key | value ---------- | --- date | 2024-02-23T08:00:57+00:00 version | 2.4.0b1 class | fix edition | cee component | rest-api level | 1 compatible | yes Before this werk, when the sla was computed for a predefined time range without specifying the range field, an error status 500 Internal Server Error was returned. This werk solves the problem by checking for the existence of the range field, and if it does not exist, the endpoint returns an error status 400 - Bad Request.