fix migrations

Fix #8363

packages/backend/migration/1580543501339-v12-13.js

@@ -1,6 +1,6 @@
-"use strict";
-Object.defineProperty(exports, "__esModule", { value: true });
-class v12131580543501339 {
+
+
+export class v12131580543501339 {
     constructor() {
         this.name = 'v12131580543501339';
     }
@@ -11,4 +11,3 @@ class v12131580543501339 {
         await queryRunner.query(`DROP INDEX "IDX_NOTE_TAGS"`, undefined);
     }
 }
-exports.v12131580543501339 = v12131580543501339;