multi-tenant branch changed db to tenants_db

database/upgrade/upg_sys_role_dept.sql

@@ -1,7 +1,7 @@
 SET FOREIGN_KEY_CHECKS=0;
 
 CREATE TABLE
-    IF NOT EXISTS `omc_db`.`sys_role_dept` (
+    IF NOT EXISTS `sys_role_dept` (
         `role_id` bigint(20) NOT NULL COMMENT '角色ID',
         `dept_id` bigint(20) NOT NULL COMMENT '部门ID',
         PRIMARY KEY (`role_id`, `dept_id`) USING BTREE