chenge some item for mission

database/migrations/2025_06_24_114516_add_start-and-finish-time_to_missions_table.php

@@ -23,8 +23,7 @@ return new class extends Migration
     public function down(): void
     {
         Schema::table('missions', function (Blueprint $table) {
-            $table->dropColumn('start_time'.'finish_time');
-
+            $table->dropColumn(['start_time', 'finish_time']);
         });
     }
 };