邮箱模块：完善 account 的单元测试

yudao-module-system/yudao-module-system-biz/src/test/resources/sql/create_tables.sql

@@ -566,3 +566,19 @@ CREATE TABLE IF NOT EXISTS "system_oauth2_code" (
      "deleted" bit NOT NULL DEFAULT FALSE,
      PRIMARY KEY ("id")
 ) COMMENT 'OAuth2 刷新令牌';
+
+CREATE TABLE IF NOT EXISTS "system_mail_account" (
+     "id" bigint NOT NULL GENERATED BY DEFAULT AS IDENTITY,
+     "mail" varchar NOT NULL,
+     "username" varchar NOT NULL,
+     "password" varchar NOT NULL,
+     "host" varchar NOT NULL,
+     "port" int NOT NULL,
+     "ssl_enable" bit NOT NULL,
+     "creator" varchar DEFAULT '',
+     "create_time" datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+     "updater" varchar DEFAULT '',
+     "update_time" datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+     "deleted" bit NOT NULL DEFAULT FALSE,
+     PRIMARY KEY ("id")
+) COMMENT '邮箱账号表';