Automated Integ Tests

[srgothi92]

What I'd like:
Automated integration tests that can:

• Create an ECS cluster with Bottlerocket instances
• Run the updater on the cluster.
• After updater is done, assert Bottlerocket version and health of all the instance.
• In addition to this we can also add automated for few important cases
  1. Cluster with non-Bottlerocket instances.
  2. Cluster with few instances in DRAINING state.
  3. Cluster with non-active instances.

Any alternatives you've considered:

1. Run manually as we are doing today.