[2.4.0] Checkmk Werk 16662 created: Rest API: change host rename wait for completion endpoint to GET

[//]: # (werk v2) # Rest API: change host rename wait for completion endpoint to GET key | value ---------- | --- date | 2024-07-11T14:16:49+00:00 version | 2.4.0b1 class | fix edition | cre component | rest-api level | 1 compatible | no The wait-for-completion endpoint for host renames was using the POST method. This caused some issues and was inconsitent with other such endpoints. This werk changes the endpoint to be GET, just like the other ones.