Increase buffer size for result channel in gRPC product retrieval; modify error handling to return nil instead of skipping retry

internal/tasks/ozon/ozon.go

@@ -23,23 +23,23 @@ func (p *FetchProductsProcessor) ProcessTask(ctx context.Context, task *asynq.Ta
 	var payload types.FetchProductsTask
 	err := payload.Unmarshal(task)
 	if err != nil {
-		return asynq.SkipRetry
+		return nil
 	}
 	marketplaceRepo := marketplace.NewDBRepository(p.Dbpool)
 	marketplaceById, err := marketplaceRepo.GetMarketplaceByID(ctx, payload.MarketplaceId)
 	if err != nil {
-		return asynq.SkipRetry
+		return nil
 	}
 	identifier, err := marketplaceById.GetIdentifier()
 	if err != nil {
-		return asynq.SkipRetry
+		return nil
 	}
 	lockKey := fmt.Sprintf("ozon:products:marketplace:%s:lock", identifier)
 	locker := *redis.Locker
 	_, cancel, err := locker.TryWithContext(ctx, lockKey)
 	if err != nil {
 		fmt.Printf("Failed to acquire lock for marketplace %s: %v\n", identifier, err)
-		return asynq.SkipRetry
+		return nil
 	}
 	defer cancel()
 	ozonRepo := products.NewAPIRepository(marketplaceRepo)
@@ -54,7 +54,7 @@ func (p *FetchProductsProcessor) ProcessTask(ctx context.Context, task *asynq.Ta
 	})
 	productsJson, err := json.Marshal(productsProto)
 	if err != nil {
-		return asynq.SkipRetry
+		return nil
 	}
 	redisClient := *redis.Client
 	productsKey := fmt.Sprintf("ozon:products:%s", identifier)