[Improvement] [EKS] create vpc endpoint for s3 to save network traffic cost

[zjx20]

In AWS, we need to explicitly create an S3 VPC Gateway Endpoint so that when accessing S3 from EC2, it does not use public network traffic (even if accessing S3 in the same region).

https://medium.com/nubego/how-to-save-money-with-aws-vpc-endpoints-9bac8ae1319c
https://towardsaws.com/aws-s3-vpc-endpoint-2b53bec6518f
https://tomgregory.com/when-to-use-an-aws-s3-vpc-endpoint/
https://www.bioaws.com/blogs/2020-02-02-vpc-endpoint-s3/
https://aws.amazon.com/cn/blogs/china/use-vpc-endpoint-access-from-vpc-or-idc-s3/