Upgrade repository-s3 plugin to use aws-sdk-java library version 1.11.704 or greater

[larry-hernandez]

Elasticsearch version (bin/elasticsearch --version): 7.6

Plugins installed: [repository-s3]

Description of the problem including expected versus actual behavior:

The aws-sdk-java library (version 1.11.636) used in the s3-repository plugin contains a bug that prevents the IAM container role on Amazon EKS deployments from authenticating to s3 buckets. The IAM container role authentication bug is resolved as of 1.11.704.

The request here is to use a version of the aws-sdk-java library that is equal to or greater than 1.11.704 in the repository-s3 plugin.

[elasticmachine]

Pinging @elastic/es-core-infra (:Core/Infra/Plugins)

[elasticmachine]

Pinging @elastic/es-distributed (:Distributed/Snapshot/Restore)