[2.4.0] Checkmk Werk 16663 created: Rest API: change response codes for some endpoints from 302 to 303

[//]: # (werk v2) # Rest API: change response codes for some endpoints from 302 to 303 key | value ---------- | --- date | 2024-07-11T14:48:17+00:00 version | 2.4.0b1 class | fix edition | cre component | rest-api level | 1 compatible | no Some endpoints accept some data (via POST, PUT), start a background job and then redirect to other "wait-for-completion" endpoints. The wait-for-completion endpoints however expected requests with the GET method. Previously, we used the response code "302 Found" in these cases. Some clients, like the python requests library, always change the method to GET on redirects, but this is not according to the spec. As such "correct" clients ran into issues so we made the decision to update these endpoints to use "303 See other" instead. This status code guarantees a change to the GET method. Affected endpoints: * Execute service discovery on host (`/domain-types/service_discovery_run/actions/start/invoke`) * Rename a host (`/objects/host_config/example.com/actions/rename/invoke`) * Activate pending changes (`/domain-types/activation_run/actions/activate-changes/invoke`)