transient failures in aws-s3 tvm from sts timeouts

[moritzraho]

Bug

2021-06-07T10:25:43.454Z [@adobe/aio-tvm] error: aws call timed out after 20000, are credentials set?
https://github.com/adobe/aio-tvm/blob/master/lib/impl/AwsS3Tvm.js#L49

Possible causes to investigate

• If this happens on high load or on many requests for the same namespace: there might be a limit in the number of sts credentials

[meryllblanchet]

Based on the analysis outcome: a possible candidate for https://github.com/AdobeDocs/project-firefly/blob/master/getting_started/common_troubleshooting.md and https://github.com/AdobeDocs/project-firefly/blob/master/guides/deployment.md

[aiojbot]

JIRA issue created: https://jira.corp.adobe.com/browse/ACNA-1180