Missing event - ErrorinPrepareForMaintenance

### problem

If an error occurs when enabling maintenance mode, no corresponding event is created.

Events:

### versions

ACS: 4.22.1.0

### The steps to reproduce the bug

Example how to reproduce:
1. Create enough VMs to use up almost all available memory in the cluster
2. Enable Maintenance for one host
3. ErrorinPrepareForMaintenance will show up on the host
4. Check Events - no error is generated

### What to do about it?

_No response_

未指定源文件或测试。通过在集群内存压力下的主机上启用维护来复现故障，然后跟踪维护模式错误事件的路径并检查已打开的 pull request #13669；当创建了一个 ErrorinPrepareForMaintenance 事件，并且相关的事件行为已由测试覆盖时，即视为完成。

由索引模型根据 Issue 内容生成。