Add settings retry attempts and interval retry attempts for recurring snapshots

### The required feature described as a wish

We are facing a problem with recurring snapshots for volumes. When a recurring snapshot job fails, ACS keeps making endless retry attempts.

The user does not receive any notifications when a recurring snapshot job fails. Only repeated retry attempts to create the snapshot are observed.

In our test case, we reproduced the issue with an error:
```
Error while creating entity for allocating snapshot
```

It would be good to have the ability to configure:
- the of retry attempts
- the interval between retries

To avoid an infinite snapshot creation loop that ends with an error. After the maximum number of retries is exhausted, a notification should be sent informing that the job has failed.

Related discussion: [Recurring snapshots: How to limit retry attempts or configure interval in global settings? #13439 ](https://github.com/apache/cloudstack/discussions/13439)

Issue 中沒有指定檔案或測試。首先追蹤定期執行的 snapshot job 及其現有的重試與通知路徑，然後找出設定入口；完成標準是具備有上限且可設定的重試次數、重試間隔，以及在重試耗盡後傳送失敗通知。

由索引模型根據 Issue 內容生成。