Revert protected modificator for apiClient property and added getter …

…for getSoapClient (5.x backward compatibility to access __getLastRequest and __getLastResponse for log purpose)

src/GusApi/Client/GusApiClient.php

@@ -107,4 +107,9 @@ private function getRequestHeaders(string $action, string $to): array
             new \SoapHeader(self::ADDRESSING_NAMESPACE, 'To', $to),
         ];
     }
+
+    public function getSoapClient(): \SoapClient
+    {
+        return $this->soapClient;
+    }
 }

src/GusApi/GusApi.php

@@ -33,7 +33,7 @@ class GusApi
     protected const SERVICE_TIME_ZONE = 'Europe/Warsaw';
 
     protected const SERVICE_STATUS_DATE_FORMAT = 'd-m-Y';
-    private GusApiClient $apiClient;
+    protected GusApiClient $apiClient;
     private string $sessionId;
 
     public function __construct(private string $userKey, string $env = 'prod', ?BuilderInterface $builder = null)