test test (#21)

* test github square

* test

---------

Co-authored-by: loboxu.1227 <[email protected]>

Author: socutes

src/placement-center/src/server/grpc/server.rs

@@ -21,6 +21,7 @@ use crate::{
     },
     storage::rocksdb::RocksDBEngine,
 };
+
 use clients::poll::ClientPool;
 use common_base::config::placement_center::placement_center_conf;
 use log::info;