deps(deps): bump ex_aws_auth from 1.4.1 to 1.4.2 (#993)

Bumps [ex_aws_auth](https://github.com/neilberkman/ex_aws_auth) from 1.4.1 to 1.4.2.
- [Changelog](https://github.com/neilberkman/ex_aws_auth/blob/main/CHANGELOG.md)
- [Commits](https://github.com/neilberkman/ex_aws_auth/compare/v1.4.1...v1.4.2)

---
updated-dependencies:
- dependency-name: ex_aws_auth
  dependency-version: 1.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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