feat(container) production build

backend/api_server/src/blog/cron/mod.rs

@@ -7,7 +7,7 @@ pub mod check_update;
 pub fn get_tasks(db_connection: Pool<Postgres>) -> Vec<Box<dyn Task>> {
     let db_conn_clone = db_connection.clone();
     vec![
-        BasicTask::new(move || check_update::task(&db_conn_clone), "0 * * * * *")
+        BasicTask::new(move || check_update::task(&db_conn_clone), "0/15 * * * * *")
             .unwrap()
             .to_task(),
     ]