sync deployed value of db_allocated_storage with deployment

this is 20gb as deployed

Author: aagbsn

tf/environments/dev/main.tf

@@ -160,7 +160,7 @@ module "oonipg" {
   # 1074000000 / 9531392 = 112.68
   db_instance_class        = "db.t4g.micro" # 2GiB => ~224 max_connections
   db_storage_type          = "gp3"
-  db_allocated_storage     = "5"
+  db_allocated_storage     = "20"
   db_max_allocated_storage = null
 
   allow_cidr_blocks = [