Add api-sandbox secrets
Add api-sandbox secrets

securely version control secrets for kubernetes api-sandbox
environment.

- Remove ADP_BUCKET_NAME from api-sandbox secrets
  Not needed, see SETTINGS__AWS__S3__BUCKET
  which is accessed via Settings.aws.s3.bucket
  and `Config` gem

- remove AWS_ACCESS_KEY
  TD only

- remove SECRET_ACCESS_KEY
  TD only

- remove AWS_RESPONSE_QUEUE_NAME
  see SETTINGS__AWS__SQS__RESPONSE_QUEUE_URL

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