fixed old PaystackConfig path

Author: myckhel

src/Http/Middleware/ValidatePaystackHook.php

@@ -4,11 +4,10 @@
 
 use Closure;
 use Illuminate\Http\Request;
-use Myckhel\Paystack\Traits\PaystackConfig;
+use Myckhel\Paystack\PaystackConfig;
 
 class ValidatePaystackHook
 {
-  use PaystackConfig;
   /**
    * Handle an incoming request.
    *
@@ -23,7 +22,7 @@ public function handle(Request $request, Closure $next)
       abort(403, 'Signature header not found');
     }
 
-    $signingSecret = $this->config('secret_key');
+    $signingSecret = PaystackConfig::config('secret_key');
 
     if (empty($signingSecret)) {
       abort(403, 'Signing Secret Not Set');