Update fly.toml

chore: reduce VM memory to 256MB and keep one instance running

Author: giacomo-secchi

fly.toml

@@ -15,10 +15,10 @@ primary_region = 'fra'
   processes = ['app']
 
 [[vm]]
-  memory = '1gb'
+  memory = '256mb'
   cpu_kind = 'shared'
   cpus = 1
-  memory_mb = 1024
+  memory_mb = 256
 
 [build]
   dockerfile = 'Dockerfile'