This command line tool only queries all target group that is attached to a load balancer.
Given an ecs cluster is provided, it concurrently checks for the health status for all target groups in that cluster.
If a target groups shows at least 1 healthy task, it will return the check while other target groups health checks are concurrently going on.
This way, instead of using a loop to check each target group health status - one after another, we can minimize the time by checking all the target groups' health concurrently. The total wait time for the results would be the number of attempts X delay time(in seconds).
The program will not exit with error code 1 unless you pass the -e flag for any unhealthy targets.
