chore: appease the linter (aka remove 1 unused import)

Author: mini-bomba

backend/commands/scraper.ts

@@ -9,7 +9,6 @@ import db from "@adonisjs/lucid/services/db";
 import Course from "#models/course";
 import Department from "#models/department";
 import Group from "#models/group";
-import GroupArchive from "#models/group_archive";
 import Lecturer from "#models/lecturer";
 import Registration from "#models/registration";