increase `max_total_runs` for HyperDriveConfig

I have a fairly large parameter space. I would like to initiate a grid search but the max number of run is set to 1000:
```
Response status code does not indicate success: 400 (BAD REQUEST). {"code": 400, "message": "{'max_total_jobs': ['Must be between 1 and 1000.']}"}
```
Is it possible to increase this limit?

---
#### Document Details

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* ID: a7be45ce-baa1-ab0b-9c4a-8c64aab8131d
* Version Independent ID: 92eda8b3-b75c-69a3-11f0-ac1ec2fe4a87
* Content: [azureml.train.hyperdrive.HyperDriveConfig class - Azure Machine Learning Python](https://docs.microsoft.com/en-us/python/api/azureml-train-core/azureml.train.hyperdrive.hyperdriveconfig?view=azure-ml-py)
* Content Source: [AzureML-Docset/stable/docs-ref-autogen/azureml-train-core/azureml.train.hyperdrive.HyperDriveConfig.yml](https://github.com/MicrosoftDocs/MachineLearning-Python-pr/blob/live/AzureML-Docset/stable/docs-ref-autogen/azureml-train-core/azureml.train.hyperdrive.HyperDriveConfig.yml)
* Service: **machine-learning**
* Sub-service: **core**
* GitHub Login: @DebFro
* Microsoft Alias: **debfro**

從連結的 HyperDriveConfig API 頁面及其位於 AzureML-Docset/stable/docs-ref-autogen/azureml-train-core/azureml.train.hyperdrive.HyperDriveConfig.yml 的來源開始。調查 max_total_jobs 限制在哪裡強制執行，以及 Azure Machine Learning 服務是否支援更高的值。確認支援的限制，並相應更新 API 文件或實作後，即視為完成。

由索引模型根據 Issue 內容生成。