Revert "Remove scripts/update-version.sh, as it's no longer needed."
Revert "Remove scripts/update-version.sh, as it's no longer needed."

This reverts commit b2d93079db65d6744735f8c318af6dac8983ac58.

aws/amazon-ecs-agent,aws/amazon-ecs-init,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-init,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-init,aws/amazon-ecs-agent,aws/amazon-ecs-agent,rjschwei/amazon-ecs-init,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-agent,rjschwei/amazon-ecs-init,kiranmeduri/amazon-ecs-agent