enh(migration): rename unused fetch only script

migrate_csplus/src/data_fetch.rs

@@ -53,7 +53,7 @@ pub async fn fetch_profiles(
 }
 
 /// Fetches a batch of data based on the scroll ID and time.
-pub async fn fetch_scroll_batch(
+async fn fetch_scroll_batch(
     scroll_id: &str,
     scroll_time: &str,
 ) -> Result<ScrollResponse, Box<dyn Error>> {
@@ -69,7 +69,7 @@ pub async fn fetch_scroll_batch(
 }
 
 /// Processes the hits from the fetched data.
-pub async fn process_hits(
+async fn process_hits(
     pool: Arc<Mutex<Pool<PostgresConnectionManager<NoTls>>>>,
     hits: &[Hit],
 ) -> Result<(), Box<dyn Error>> {