chore: Bump @aws-sdk/client-sts from 3.476.0 to 3.478.0 (#959)

Bumps [@aws-sdk/client-sts](https://github.com/aws/aws-sdk-js-v3/tree/HEAD/clients/client-sts) from 3.476.0 to 3.478.0.
- [Release notes](https://github.com/aws/aws-sdk-js-v3/releases)
- [Changelog](https://github.com/aws/aws-sdk-js-v3/blob/main/clients/client-sts/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js-v3/commits/v3.478.0/clients/client-sts)

---
updated-dependencies:
- dependency-name: "@aws-sdk/client-sts"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]