CARDS-2635: Upgrade to aws sdk v2

[sdumitriu]

• Build with mvn clean install -Pdocker
• In compose-cluster make a docker-compose file with python3 generate_compose_yaml.py --dev_docker_image --composum --cards_project cards4heracles --s3_test_container --oak_filesystem then start it up with docker-compose build && docker-compose up
• visit http://localhost:9001/ and create a bucket named uhn
• create a Participant Status form and a Holter form, and fill in the data so it's complete (use some ~10MB files in the Holter form)
• open http://localhost:8080/Subjects.export?config=Heracles%20-%20Subjects%20with%20Data
• open http://localhost:9001/buckets/uhn/browse and check that the subject JSON is present
• open http://localhost:8080/Subjects.export?config=Heracles%20-%20Big%20Files
• open http://localhost:9001/buckets/uhn/browse and check that the big files are present
• shut down and cleanup with docker-compose rm -vf && ./cleanup.sh