refactor(接口测试): 增加schedule表的config的长度

--bug=1023284 --user=郭雨琦
https://www.tapd.cn/55049933/bugtrace/bugs/view/1155049933001023284

system-setting/backend/src/main/resources/db/migration/2.7.0/ddl/V135__alter_schedule_config.sql

@@ -0,0 +1,6 @@
+SET SESSION innodb_lock_wait_timeout = 7200;
+
+alter table schedule
+    modify column config varchar(1000);
+
+SET SESSION innodb_lock_wait_timeout = DEFAULT;