Enable proxy settings for dataset in values of helm

[YANGBoSunning]

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The dataset container of graphscope provides the function of obtaining sample dataset online, but there are many inconveniences in accessing the external network to obtain data in many Intranet environments. Therefore, the option of configuring the proxy service address for the dataset container should be added to the configuration file of helm

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In the values file of helm, add the configuration item proxy of dataset.

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I provided the corresponding configuration of dataset in the values file of helm, modified the cluster_builder.py coordinator.py kubernetes_launcher.py, and added a dataset_proxy attribute in the corresponding classes

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[siyuan0322]

I provided the corresponding configuration of dataset in the values file of helm, modified the cluster_builder.py coordinator.py kubernetes_launcher.py, and added a dataset_proxy attribute in the corresponding classes

Great! Have you already rolled out a working version? Would you consider to submit a PR to address this?

[YANGBoSunning]

please hold on, i will push it some minutes later.

[YANGBoSunning]

I'm sorry that we used version 0.19.0 for deployment. We haven't actually deployed the code of main branch yet. Looking forward to your review @siyuan0322