Fix bucket policy for new AWS Regions

[alexandervasylev]

Changes proposed in this pull request:

• Fixes New AWS Regions #314

AWS Principal in the bucket policy depends on AWS Region creation date: https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/enable-access-logs.html#attach-bucket-policy

[amontalban]

Thanks @alexandervasylev we are having the same issue and this fixes the problem.

[nicomfer]

Thanks @alexandervasylev , This is also affecting NLB bucket policies statement.

modifying ELBv2 Load Balancer (arn:aws:elasticloadbalancing:ap-southeast-4:xxxx:loadbalancer/net/xxxxx/xxxxx) attributes: operation error Elastic Load Balancing v2: ModifyLoadBalancerAttributes, https response error StatusCode: 400, RequestID: 3be836as-fc100-4ae4-8186-23fx64873b25, api error ValidationError: Access Denied for bucket: xxxxx. Please check S3bucket permission

[esacteksab]

Been a minute since this was open. Also looks like there are additional regions

ap-southeast-5
ap-southeast-7

If you're willing to update your PR off main with these new regions would be happy to merge and cut a release. Thanks!

[esacteksab]

Thanks @alexandervasylev , This is also affecting NLB bucket policies statement.

modifying ELBv2 Load Balancer (arn:aws:elasticloadbalancing:ap-southeast-4:xxxx:loadbalancer/net/xxxxx/xxxxx) attributes: operation error Elastic Load Balancing v2: ModifyLoadBalancerAttributes, https response error StatusCode: 400, RequestID: 3be836as-fc100-4ae4-8186-23fx64873b25, api error ValidationError: Access Denied for bucket: xxxxx. Please check S3bucket permission

Looking at the docs they include an example bucket policy and it isn't using Service Principals like ELB and ALB do. I spent a little bit of time in the docs, and I can't find similar configuration requirements for an NLB. Definitely interested in addressing this if you can shed anymore light on things. This is getting done in #322 but happy to do another PR for NLB when we know more. Thanks!