修复使用PG数据库时,站内信表、菜单权限表字段类型不一致问题

在`NotifyMessageDO`实体类中`read_status`是布尔类型，因此数据库中也要定义为 `bool` 类型，否则查询报错。菜单权限表`system_menu`表同理。

sql/postgresql/ruoyi-vue-pro.sql

@@ -2607,7 +2607,7 @@ CREATE TABLE "system_menu" (
   "update_time" timestamp(6) NOT NULL,
   "deleted" int2 NOT NULL DEFAULT 0,
   "component_name" varchar(255) COLLATE "pg_catalog"."default",
-  "always_show" char(1) COLLATE "pg_catalog"."default"
+  "always_show" bool NOT NULL DEFAULT false
 )
 ;
 COMMENT ON COLUMN "system_menu"."id" IS '菜单ID';
@@ -4239,7 +4239,7 @@ CREATE TABLE "system_notify_message" (
   "template_content" varchar(1024) COLLATE "pg_catalog"."default" NOT NULL,
   "template_type" int4 NOT NULL,
   "template_params" varchar(255) COLLATE "pg_catalog"."default" NOT NULL,
-  "read_status" varchar(1) COLLATE "pg_catalog"."default" NOT NULL,
+  "read_status" bool NOT NULL DEFAULT false,
   "read_time" timestamp(6),
   "creator" varchar(64) COLLATE "pg_catalog"."default",
   "create_time" timestamp(6) NOT NULL,