Update module github.com/aws/aws-sdk-go to v1.39.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/aws/aws-sdk-go	require	minor	v1.38.71 -> v1.39.0

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Release Notes

aws/aws-sdk-go

### [`v1.39.0`](https://togithub.com/aws/aws-sdk-go/blob/master/CHANGELOG.md#Release-v1390-2021-07-02) [Compare Source](https://togithub.com/aws/aws-sdk-go/compare/v1.38.71...v1.39.0) \=== ##### Service Client Updates - `service/ec2`: Updates service API - This release removes network-insights-boundary - `service/elasticloadbalancingv2`: Updates service documentation ##### SDK Features - `internal/ini`: The ini parser has been updated to support `[`, `]`, `:`, and `=` being present in section key values. ([#​3958](https://togithub.com/aws/aws-sdk-go/issues/3958))

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