NRL-1664 Disable all firehose processor infrastructure for perftest

Author: axelkrastek1-nhs

terraform/infrastructure/firehose.tf

@@ -1,5 +1,5 @@
 module "firehose__processor" {
-  count                = var.use_shared_resources ? 1 : 0
+  count                = var.use_shared_resources && !var.disable_firehose_lambda_subscriptions ? 1 : 0
   source               = "./modules/firehose"
   assume_account       = local.aws_account_id
   prefix               = local.prefix