fix table departments field name not unique

database/migrations/2024_02_08_074258_create_departments_table.php

@@ -10,7 +10,7 @@ return new class extends Migration
     {
         Schema::create('departments', function (Blueprint $table) {
             $table->id();
-            $table->string('name', 255)->unique();
+            $table->string('name', 255);
             $table->text('description')->nullable();
             $table->smallInteger('position');
             $table->string('slug', 255)->unique();