INTEGRATION [PR#5293 > development/8.6] CLDSRV-438: update AWS backend bucket and keys for the CI

[bert-e]

This pull request has been created automatically. It is linked to its parent pull request #5293.

Do not edit this pull request directly. If you need to amend/cancel the changeset on branch w/8.6/improvement/CLDSRV-438-update-tests-AWS-keys, please follow this procedure:

 $ git fetch
 $ git checkout w/8.6/improvement/CLDSRV-438-update-tests-AWS-keys
 $ # <amend or cancel the changeset by _adding_ new commits>
 $ git push origin w/8.6/improvement/CLDSRV-438-update-tests-AWS-keys

Please always comment pull request #5293 instead of this one.