[2.4.0] Checkmk Werk 17245 created: notification rules: align the REST-API with the UI for the Servicenow plugin

[//]: # (werk v2) # notification rules: align the REST-API with the UI for the Servicenow plugin key | value ---------- | --- date | 2024-08-16T14:02:00+00:00 version | 2.4.0b1 class | fix edition | cre component | notifications level | 1 compatible | no The Servicenow plugin method for notification rules recently has some improvements. You can now select between Basic authentication or Token authentication. For each of these you can also select a password store id. This werk aligns the REST-API with this improved configuration.