fix(deps): update dependency aws-sdk to v2.1248.0 (#722)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [aws-sdk](https://togithub.com/aws/aws-sdk-js) | [`2.1246.0` ->
`2.1248.0`](https://renovatebot.com/diffs/npm/aws-sdk/2.1246.0/2.1248.0)
|
[![age](https://badges.renovateapi.com/packages/npm/aws-sdk/2.1248.0/age-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://badges.renovateapi.com/packages/npm/aws-sdk/2.1248.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://badges.renovateapi.com/packages/npm/aws-sdk/2.1248.0/compatibility-slim/2.1246.0)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://badges.renovateapi.com/packages/npm/aws-sdk/2.1248.0/confidence-slim/2.1246.0)](https://docs.renovatebot.com/merge-confidence/)
|

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