feat: Allow snapshot_id to be specified for additional_ebs_volumes (#1431)

workers.tf

@@ -344,6 +344,11 @@ resource "aws_launch_configuration" "workers" {
         "encrypted",
         local.workers_group_defaults["root_encrypted"],
       )
+      snapshot_id = lookup(
+        block_device_mappings.value,
+        "snapshot_id",
+        local.workers_group_defaults["snapshot_id"],
+      )
       delete_on_termination = lookup(ebs_block_device.value, "delete_on_termination", true)
     }
   }