v2.15.31: Bump amazon/aws-cli from 2.15.30 to 2.15.31 in /aws-cli (#271)

Bumps amazon/aws-cli from 2.15.30 to 2.15.31.

---
updated-dependencies:
- dependency-name: amazon/aws-cli
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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