[2.4.0] Checkmk Werk 16552 created: Crash on activate changes when re-registering agents

[//]: # (werk v2) # Crash on activate changes when re-registering agents key | value ---------- | --- date | 2024-03-28T15:50:10+00:00 version | 2.4.0b1 class | fix edition | cre component | checks level | 1 compatible | yes When re-registering agents, a call to activate changes could crash with an error message like ``` [Errno 2] No such file or directory: '/omd/sites/<site>/var/agent-receiver/received-outputs/<uuid> ```