JOBのトランザクションを修正

workジョブでシングルトンになっていたため２重のトランザクションが発生していた

app/Jobs/BaseJob.php

@@ -8,26 +8,25 @@ use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Bus\Dispatchable;
 use Illuminate\Queue\InteractsWithQueue;
 use Illuminate\Queue\SerializesModels;
+use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Log;
 
 abstract class BaseJob implements ShouldQueue
 {
     use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
 
-    protected DBUtil $db;
 
     public function handle()
     {
-        $this->db = DBUtil::instance();
         try {
-            $this->db->beginTransaction();
+            DB::beginTransaction();
 
             $this->logConfig();
             $this->handleJob();
 
-            $this->db->commit();
+            DB::commit();
         } catch (Exception $e) {
-            $this->db->rollBack();
+            DB::rollBack();
             throw $e;
         }
     }