chore: update prod fly io settings and name

builder/modal-builder/fly.production.toml

@@ -3,7 +3,7 @@
 # See https://fly.io/docs/reference/configuration/ for information about how to use this file.
 #
 
-app = "modal-builder"
+app = "modal-builder-production"
 primary_region = "sea"
 
 [build]
@@ -15,3 +15,8 @@ primary_region = "sea"
   auto_start_machines = true
   min_machines_running = 0
   processes = ["app"]
+
+[[vm]]
+  cpu_kind = 'shared'
+  cpus = 1
+  memory_mb = 1024