Add support for ASG max instance lifetime (#769)

Co-authored-by: Thierno IB. BARRY <ibrahima.br@gmail.com>

workers_launch_template.tf

@@ -72,6 +72,11 @@ resource "aws_autoscaling_group" "workers_launch_template" {
     "termination_policies",
     local.workers_group_defaults["termination_policies"]
   )
+  max_instance_lifetime = lookup(
+    var.worker_groups_launch_template[count.index],
+    "max_instance_lifetime",
+    local.workers_group_defaults["max_instance_lifetime"],
+  )
 
   dynamic mixed_instances_policy {
     iterator = item