1.1.4

Removed AZ variable in blue-green deployment and single-stack module that was causing the following change every TF apply:

~ module.api_admin_deploy.green.aws_autoscaling_group.bluegreen_asg
    availability_zones.#:          "3" => "0"
    availability_zones.1924028850: "eu-west-1b" => ""
    availability_zones.3953592328: "eu-west-1a" => ""
    availability_zones.94988580:   "eu-west-1c" => ""

~ module.api_admin_deploy.blue.aws_autoscaling_group.bluegreen_asg
    availability_zones.#:          "3" => "0"
    availability_zones.1924028850: "eu-west-1b" => ""
    availability_zones.3953592328: "eu-west-1a" => ""
    availability_zones.94988580:   "eu-west-1c" => ""