add dummy queue name env var in engine as it's not used

infrastructure/terraform/lambda/engine/main.tf

@@ -57,8 +57,8 @@ module "lambda" {
       ENERGY_ASSESSMENTS_BUCKET       = data.terraform_remote_state.shared.outputs.retrofit_energy_assessments_bucket_name
 
       # SQS
-      ENGINE_SQS_URL         = module.lambda.sqs_queue_url
-
+      ENGINE_SQS_URL = "test" # Not actually needed by engine, only to satisfy Settings
+ 
       # Deployment
       ECR_URI    = var.ecr_repo_url
       GITHUB_SHA = var.image_digest