补充积木报表缺少的升级sql

jeecg-module-system/jeecg-system-start/src/main/resources/flyway/sql/mysql/V3.7.01__jimureport_upgrade.sql

@@ -0,0 +1,2 @@
+ALTER TABLE `jimu_report_link` 
+ADD COLUMN `expression` varchar(255) NULL COMMENT '表达式';