Enable OpenTelemetry in forms-admin for production

Author: cadmiumcat

infra/deployments/forms/tfvars/production.tfvars

@@ -133,7 +133,7 @@ forms_admin_settings = {
   previous_auth_provider           = null
   cloudwatch_metrics_enabled       = true
   analytics_enabled                = true
-  enable_opentelemetry             = false
+  enable_opentelemetry             = true
   opentelemetry_head_sampler_ratio = "0.1"
   act_as_user_enabled              = false
   welsh_enabled                    = true