fix(migrate):修正迁移文件中的错误。

migration/20220915101901_initialize.tx.up.sql

@@ -5,7 +5,7 @@ create table if not exists region (
     parent varchar(15) not null default '0'
 );
 
-create table if not exists user (
+create table if not exists `user` (
     created_at timestamptz not null,
     id varchar(120) not null primary key,
     username varchar(30) not null,

migration/20220915131901_add_constraints.up.sql

@@ -1,4 +1,4 @@
-alter table if exists user add constraint user_type_check check (type in (0, 1, 2));
+alter table if exists `user` add constraint user_type_check check (type in (0, 1, 2));
 
 alter table if exists user_detail add constraint positive_service_fee check (unit_service_fee >= 0);