feat: incr sync version.

go/chao-sdk-core/pkg/db/group_member_model.go

@@ -194,9 +194,6 @@ func (d *DataBase) InsertGroupMember(ctx context.Context, groupMember *model_str
 func (d *DataBase) BatchInsertGroupMember(ctx context.Context, groupMemberList []*model_struct.LocalGroupMember) error {
 	d.groupMtx.Lock()
 	defer d.groupMtx.Unlock()
-	if groupMemberList == nil {
-		return errors.New("nil")
-	}
 	return errs.WrapMsg(d.conn.WithContext(ctx).Create(groupMemberList).Error, "BatchInsertMessageList failed")
 }