Fix incorrect warning log code

The binanceListingsChecker contains code that is not correct:

crypto-listings-sniper/exchanges/binanceListingsChecker/binanceListingsChecker.go

Lines 49 to 60 in 05a751d

    
           blc.lastAssetsCheckTime = time.Now() 
        
           // Retrieve listing prices from Binance. 
        
           priceService := blc.BinanceClient.NewListPricesService() 
        
           listingPrices, err := priceService.Do(context.Background()) 
        
           assets = make([]string, len(listingPrices)) 
        
           // Log warning if failed. 
        
           if time.Since(blc.lastAssetsCheckTime) > time.Minute { // Only log every minute. 
        
           	log.Printf("WARNING: Error retrieving Binance listing prices: %v", err) 
        
           	blc.lastAssetsCheckTime = time.Now() 
        
           }

Here, the warning rate limit variable gets reset every time, while it should only be reset on the first trigger and after 1 minute.

Fixed in https://github.com/rickstaa/crypto-listings-sniper/releases/tag/v1.1.21.

	blc.lastAssetsCheckTime = time.Now()

	// Retrieve listing prices from Binance.
	priceService := blc.BinanceClient.NewListPricesService()
	listingPrices, err := priceService.Do(context.Background())
	assets = make([]string, len(listingPrices))

	// Log warning if failed.
	if time.Since(blc.lastAssetsCheckTime) > time.Minute { // Only log every minute.
	log.Printf("WARNING: Error retrieving Binance listing prices: %v", err)
	blc.lastAssetsCheckTime = time.Now()
	}