[2.2.0] Checkmk Werk 16390 created: notification_rule: cancel previous notifications now working with custom plugin scripts

Title: notification_rule: cancel previous notifications now working with custom plugin scripts Class: fix Compatible: compat Component: rest-api Date: 1706714129 Edition: cre Level: 1 Version: 2.2.0p22 When creating or updating notification rules, the option to "cancel_previous_notifications" was previously not available when the plugin name selected was a custom plugin script. This werk addresses this issue and now allows for custom plugin scripts when setting the option to cancel.