merge one more {use}

src/database/abstraction/sqlite.rs

@@ -1,4 +1,5 @@
 use std::{
+    collections::BTreeMap,
     future::Future,
     ops::Deref,
     path::{Path, PathBuf},
@@ -12,8 +13,6 @@ use crate::{database::Config, Result};
 
 use super::{DatabaseEngine, Tree};
 
-use std::collections::BTreeMap;
-
 use log::debug;
 
 use crossbeam::channel::{bounded, Sender as ChannelSender};