Use new compute environment

Follow-up to "Add new compute environment with Amazon Linux 2023"
(19c0444) after successful testing.

Keeping the test job queue around for future testing, and the old
compute environment around in case we need to revert back to it for any
reason.

Author: victorlin

env/production/aws-batch.tf

@@ -10,7 +10,7 @@ resource "aws_batch_job_queue" "nextstrain_job_queue" {
 
   compute_environment_order {
     order               = 1
-    compute_environment = aws_batch_compute_environment.c5_instances_2023_01_17.arn
+    compute_environment = aws_batch_compute_environment.c5_instances_2026_05_19.arn
   }
 }