[2.3.0] Checkmk Werk 16501 created: omd: trigger openapi-spec generation job during start, restart and reload

[//]: # (werk v2) # omd: trigger openapi-spec generation job during start, restart and reload key | value ---------- | --- date | 2024-02-29T13:06:16+00:00 version | 2.3.0b2 class | feature edition | cre component | omd level | 1 compatible | yes Werk 15724 introduces a mechanism for regenerating the API specification, which, in certain instances, is executed as a background job due to the potential time required for completion. This update modifies the omd start, restart, and reload commands to initiate this specific background job upon execution. Users should be aware that triggering the job does not result in immediate availability of the updated documentation; there may be a delay before the documentation is updated. This saves the user from having to trigger and wait for the specification regeneration manually in case relevant changes have been made outside the user interface and the apache process needs to be restarted. Based on werk 15724 the specification is now updated in these situations: * post-create hook: Create the initial spec after a site has been created * post rename action: Update the spec after a site has been copied, restored or renamed * update-config action: Update the spec after the site has been updated * omd apache: Update the spec when the apache process is started, restarted or reloaded