[2.2.0] Checkmk Werk 16283 created: notification rule: update rule no longer creates a new rule

Title: notification rule: update rule no longer creates a new rule Class: fix Compatible: compat Component: rest-api Date: 1702294645 Edition: cre Level: 1 Version: 2.2.0p18 This werk addresses an issue found when updating a rule via the REST-API. Previously, it would instead of updating an existing rule, create a new one. We now update the existing rule as would be expected.