Upgrading AWS SDK to v1.11.749.
Required building clients inside privileged contexts because some class loading that requires privileges now happens there and working around a new SDK bug in the S3 client builder.
Closes#53191
Upgrades the AWS SDK to the same version that we're using for the repository-s3 plugin, providing
testing capabilities to override certain SDK endpoints in order to point them to localhost for testing.
Adds tests for the various credential providers.
This commit adds a new QA sub project to the discovery-ec2 plugin.
This project uses a fixture to test the plugin using a multi-node cluster.
Once all nodes are started, the nodes transport addresses are written
in a file that is later read by the fixture.
Armin Braun
Yannick Welsch
Vladimir Dolzhenko
Tanguy Leroux